155164319 has 2 divisors, whose sum is σ = 155164320. Its totient is φ = 155164318.

The previous prime is 155164309. The next prime is 155164351. The reversal of 155164319 is 913461551.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155164319 is a prime.

It is a super-2 number, since 2×155164319² = 48151931781467522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155164309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77582159 + 77582160.

It is an arithmetic number, because the mean of its divisors is an integer number (77582160).

Almost surely, 2^155164319 is an apocalyptic number.

155164319 is a deficient number, since it is larger than the sum of its proper divisors (1).

155164319 is an equidigital number, since it uses as much as digits as its factorization.

155164319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 35.

The square root of 155164319 is about 12456.4970597676. The cubic root of 155164319 is about 537.3582899540.

The spelling of 155164319 in words is "one hundred fifty-five million, one hundred sixty-four thousand, three hundred nineteen".