564156139 has 2 divisors, whose sum is σ = 564156140. Its totient is φ = 564156138.

The previous prime is 564156097. The next prime is 564156161. The reversal of 564156139 is 931651465.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 564156139 - 2²⁵ = 530601707 is a prime.

It is not a weakly prime, because it can be changed into another prime (564156199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282078069 + 282078070.

It is an arithmetic number, because the mean of its divisors is an integer number (282078070).

Almost surely, 2^564156139 is an apocalyptic number.

564156139 is a deficient number, since it is larger than the sum of its proper divisors (1).

564156139 is an equidigital number, since it uses as much as digits as its factorization.

564156139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The square root of 564156139 is about 23751.9712655603. The cubic root of 564156139 is about 826.2911592503.

The spelling of 564156139 in words is "five hundred sixty-four million, one hundred fifty-six thousand, one hundred thirty-nine".