155265131 has 32 divisors (see below), whose sum is σ = 202498560. Its totient is φ = 115831296.

The previous prime is 155265127. The next prime is 155265133. The reversal of 155265131 is 131562551.

It is not a de Polignac number, because 155265131 - 2² = 155265127 is a prime.

It is a super-2 number, since 2×155265131² = 48214521808894322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155265094 and 155265103.

It is not an unprimeable number, because it can be changed into a prime (155265133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96425 + ... + 98021.

It is an arithmetic number, because the mean of its divisors is an integer number (6328080).

Almost surely, 2^155265131 is an apocalyptic number.

155265131 is a deficient number, since it is larger than the sum of its proper divisors (47233429).

155265131 is a wasteful number, since it uses less digits than its factorization.

155265131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683.

The product of its digits is 4500, while the sum is 29.

The square root of 155265131 is about 12460.5429656978. The cubic root of 155265131 is about 537.4746406640.

The spelling of 155265131 in words is "one hundred fifty-five million, two hundred sixty-five thousand, one hundred thirty-one".