264210139 has 2 divisors, whose sum is σ = 264210140. Its totient is φ = 264210138.

The previous prime is 264210137. The next prime is 264210151. The reversal of 264210139 is 931012462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264210139 - 2¹ = 264210137 is a prime.

Together with 264210137, it forms a pair of twin primes.

It is equal to p_14413069 and since 264210139 and 14413069 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (264210137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132105069 + 132105070.

It is an arithmetic number, because the mean of its divisors is an integer number (132105070).

Almost surely, 2^264210139 is an apocalyptic number.

264210139 is a deficient number, since it is larger than the sum of its proper divisors (1).

264210139 is an equidigital number, since it uses as much as digits as its factorization.

264210139 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 264210139 is about 16254.5421036706. The cubic root of 264210139 is about 641.6770299632.

The spelling of 264210139 in words is "two hundred sixty-four million, two hundred ten thousand, one hundred thirty-nine".