155452131 has 12 divisors (see below), whose sum is σ = 237750552. Its totient is φ = 97538496.

The previous prime is 155452051. The next prime is 155452139. The reversal of 155452131 is 131254551.

It is not a de Polignac number, because 155452131 - 2¹¹ = 155450083 is a prime.

It is a super-2 number, since 2×155452131² = 48330730064882322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155452095 and 155452104.

It is not an unprimeable number, because it can be changed into a prime (155452139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 507861 + ... + 508166.

It is an arithmetic number, because the mean of its divisors is an integer number (19812546).

Almost surely, 2^155452131 is an apocalyptic number.

155452131 is a deficient number, since it is larger than the sum of its proper divisors (82298421).

155452131 is a wasteful number, since it uses less digits than its factorization.

155452131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016050 (or 1016047 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 155452131 is about 12468.0443935687. The cubic root of 155452131 is about 537.6903307204.

The spelling of 155452131 in words is "one hundred fifty-five million, four hundred fifty-two thousand, one hundred thirty-one".