142301240 has 16 divisors (see below), whose sum is σ = 320177880. Its totient is φ = 56920480.

The previous prime is 142301219. The next prime is 142301267. The reversal of 142301240 is 42103241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778726 + ... + 1778805.

Almost surely, 2^142301240 is an apocalyptic number.

142301240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142301240 is an abundant number, since it is smaller than the sum of its proper divisors (177876640).

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

142301240 is a wasteful number, since it uses less digits than its factorization.

142301240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557542 (or 3557538 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142301240 is about 11929.0083410148. The cubic root of 142301240 is about 522.0790043024.

Adding to 142301240 its reverse (42103241), we get a palindrome (184404481).

The spelling of 142301240 in words is "one hundred forty-two million, three hundred one thousand, two hundred forty".