264019139 has 12 divisors (see below), whose sum is σ = 278088216. Its totient is φ = 250627872.

The previous prime is 264019127. The next prime is 264019153. The reversal of 264019139 is 931910462.

It is a de Polignac number, because none of the positive numbers 2^k-264019139 is a prime.

It is a super-2 number, since 2×264019139² = 139412211516602642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 264019099 and 264019108.

It is not an unprimeable number, because it can be changed into a prime (264019169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70652 + ... + 74294.

It is an arithmetic number, because the mean of its divisors is an integer number (23174018).

Almost surely, 2^264019139 is an apocalyptic number.

264019139 is a deficient number, since it is larger than the sum of its proper divisors (14069077).

264019139 is a wasteful number, since it uses less digits than its factorization.

264019139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826 (or 3803 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 264019139 is about 16248.6657606094. The cubic root of 264019139 is about 641.5223678972.

The spelling of 264019139 in words is "two hundred sixty-four million, nineteen thousand, one hundred thirty-nine".