402142537 has 2 divisors, whose sum is σ = 402142538. Its totient is φ = 402142536.

The previous prime is 402142519. The next prime is 402142567. The reversal of 402142537 is 735241204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272547081 + 129595456 = 16509^2 + 11384^2 .

It is a cyclic number.

It is not a de Polignac number, because 402142537 - 2⁷ = 402142409 is a prime.

It is not a weakly prime, because it can be changed into another prime (402142567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201071268 + 201071269.

It is an arithmetic number, because the mean of its divisors is an integer number (201071269).

Almost surely, 2^402142537 is an apocalyptic number.

It is an amenable number.

402142537 is a deficient number, since it is larger than the sum of its proper divisors (1).

402142537 is an equidigital number, since it uses as much as digits as its factorization.

402142537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 402142537 is about 20053.4918904414. The cubic root of 402142537 is about 738.1194868506.

The spelling of 402142537 in words is "four hundred two million, one hundred forty-two thousand, five hundred thirty-seven".