155106613 has 2 divisors, whose sum is σ = 155106614. Its totient is φ = 155106612.

The previous prime is 155106607. The next prime is 155106629. The reversal of 155106613 is 316601551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90497169 + 64609444 = 9513^2 + 8038^2 .

It is a cyclic number.

It is not a de Polignac number, because 155106613 - 2²⁵ = 121552181 is a prime.

It is a super-2 number, since 2×155106613² = 48116122792663538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155106643) 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 as a sum of consecutive naturals, namely, 77553306 + 77553307.

It is an arithmetic number, because the mean of its divisors is an integer number (77553307).

Almost surely, 2^155106613 is an apocalyptic number.

It is an amenable number.

155106613 is a deficient number, since it is larger than the sum of its proper divisors (1).

155106613 is an equidigital number, since it uses as much as digits as its factorization.

155106613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 155106613 is about 12454.1805430948. The cubic root of 155106613 is about 537.2916667282.

The spelling of 155106613 in words is "one hundred fifty-five million, one hundred six thousand, six hundred thirteen".