142365520 has 40 divisors (see below), whose sum is σ = 361092960. Its totient is φ = 51768960.

The previous prime is 142365511. The next prime is 142365523. The reversal of 142365520 is 25563241.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142365523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80010 + ... + 81769.

It is an arithmetic number, because the mean of its divisors is an integer number (9027324).

Almost surely, 2^142365520 is an apocalyptic number.

142365520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142365520 is an abundant number, since it is smaller than the sum of its proper divisors (218727440).

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

142365520 is a wasteful number, since it uses less digits than its factorization.

142365520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161803 (or 161797 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 142365520 is about 11931.7023093941. The cubic root of 142365520 is about 522.1576032581.

The spelling of 142365520 in words is "one hundred forty-two million, three hundred sixty-five thousand, five hundred twenty".