142310254640 has 80 divisors (see below), whose sum is σ = 343776657600. Its totient is φ = 54720992256.

The previous prime is 142310254637. The next prime is 142310254643. The reversal of 142310254640 is 46452013241.

It is an interprime number because it is at equal distance from previous prime (142310254637) and next prime (142310254643).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 142310254597 and 142310254606.

It is not an unprimeable number, because it can be changed into a prime (142310254643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397349 + ... + 665211.

It is an arithmetic number, because the mean of its divisors is an integer number (4297208220).

Almost surely, 2^142310254640 is an apocalyptic number.

142310254640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142310254640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171888328800).

142310254640 is an abundant number, since it is smaller than the sum of its proper divisors (201466402960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142310254640 is a wasteful number, since it uses less digits than its factorization.

142310254640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268134 (or 268128 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 142310254640 its reverse (46452013241), we get a palindrome (188762267881).

The spelling of 142310254640 in words is "one hundred forty-two billion, three hundred ten million, two hundred fifty-four thousand, six hundred forty".