142952720 has 20 divisors (see below), whose sum is σ = 332365260. Its totient is φ = 57181056.

The previous prime is 142952717. The next prime is 142952729. The reversal of 142952720 is 27259241.

It can be written as a sum of positive squares in 2 ways, for example, as 37356544 + 105596176 = 6112^2 + 10276^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142952729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893375 + ... + 893534.

It is an arithmetic number, because the mean of its divisors is an integer number (16618263).

Almost surely, 2^142952720 is an apocalyptic number.

142952720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142952720 is an abundant number, since it is smaller than the sum of its proper divisors (189412540).

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

142952720 is a wasteful number, since it uses less digits than its factorization.

142952720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786922 (or 1786916 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 142952720 is about 11956.2837035594. The cubic root of 142952720 is about 522.8745145799.

The spelling of 142952720 in words is "one hundred forty-two million, nine hundred fifty-two thousand, seven hundred twenty".