142502320 has 40 divisors (see below), whose sum is σ = 331969824. Its totient is φ = 56888832.

The previous prime is 142502309. The next prime is 142502329. The reversal of 142502320 is 23205241.

142502320 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×142502320² = 40613822410764800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142502329) 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, 47917 + ... + 50803.

Almost surely, 2^142502320 is an apocalyptic number.

142502320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142502320 is an abundant number, since it is smaller than the sum of its proper divisors (189467504).

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

142502320 is a wasteful number, since it uses less digits than its factorization.

142502320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517 (or 3511 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 142502320 is about 11937.4335600245. The cubic root of 142502320 is about 522.3247979851.

Adding to 142502320 its reverse (23205241), we get a palindrome (165707561).

The spelling of 142502320 in words is "one hundred forty-two million, five hundred two thousand, three hundred twenty".