142602931 has 2 divisors, whose sum is σ = 142602932. Its totient is φ = 142602930.

The previous prime is 142602917. The next prime is 142602959. The reversal of 142602931 is 139206241.

It is an a-pointer prime, because the next prime (142602959) can be obtained adding 142602931 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142602931 - 2⁵ = 142602899 is a prime.

It is a super-2 number, since 2×142602931² = 40671191859581522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142602931.

It is not a weakly prime, because it can be changed into another prime (142602991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71301465 + 71301466.

It is an arithmetic number, because the mean of its divisors is an integer number (71301466).

Almost surely, 2^142602931 is an apocalyptic number.

142602931 is a deficient number, since it is larger than the sum of its proper divisors (1).

142602931 is an equidigital number, since it uses as much as digits as its factorization.

142602931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 142602931 is about 11941.6469132193. The cubic root of 142602931 is about 522.4476948321.

The spelling of 142602931 in words is "one hundred forty-two million, six hundred two thousand, nine hundred thirty-one".