3149631 has 32 divisors (see below), whose sum is σ = 4976640. Its totient is φ = 1965600.

The previous prime is 3149609. The next prime is 3149639. The reversal of 3149631 is 1369413.

It is not a de Polignac number, because 3149631 - 2⁵ = 3149599 is a prime.

It is a super-2 number, since 2×3149631² = 19840350872322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 3149595 and 3149604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3149639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44326 + ... + 44396.

It is an arithmetic number, because the mean of its divisors is an integer number (155520).

Almost surely, 2^3149631 is an apocalyptic number.

3149631 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3149631 is a deficient number, since it is larger than the sum of its proper divisors (1827009).

3149631 is a wasteful number, since it uses less digits than its factorization.

3149631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 158 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 3149631 is about 1774.7199779120. The cubic root of 3149631 is about 146.5839966847.

The spelling of 3149631 in words is "three million, one hundred forty-nine thousand, six hundred thirty-one".