3155481 has 12 divisors (see below), whose sum is σ = 5209152. Its totient is φ = 1803096.

The previous prime is 3155473. The next prime is 3155513. The reversal of 3155481 is 1845513.

3155481 is a `hidden beast` number, since 31 + 554 + 81 = 666.

It is not a de Polignac number, because 3155481 - 2³ = 3155473 is a prime.

It is a super-2 number, since 2×3155481² = 19914120682722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3155281) 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, 24981 + ... + 25106.

It is an arithmetic number, because the mean of its divisors is an integer number (434096).

Almost surely, 2^3155481 is an apocalyptic number.

It is an amenable number.

3155481 is a deficient number, since it is larger than the sum of its proper divisors (2053671).

3155481 is a wasteful number, since it uses less digits than its factorization.

3155481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50100 (or 50097 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 3155481 is about 1776.3673606549. The cubic root of 3155481 is about 146.6746936608.

The spelling of 3155481 in words is "three million, one hundred fifty-five thousand, four hundred eighty-one".