51112149 has 32 divisors (see below), whose sum is σ = 81285120. Its totient is φ = 28204800.

The previous prime is 51112091. The next prime is 51112151. The reversal of 51112149 is 94121115.

It is a happy number.

It is not a de Polignac number, because 51112149 - 2⁹ = 51111637 is a prime.

It is a super-2 number, since 2×51112149² = 5224903550796402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51112169) 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, 15922 + ... + 18860.

It is an arithmetic number, because the mean of its divisors is an integer number (2540160).

Almost surely, 2^51112149 is an apocalyptic number.

It is an amenable number.

51112149 is a deficient number, since it is larger than the sum of its proper divisors (30172971).

51112149 is a wasteful number, since it uses less digits than its factorization.

51112149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001.

The product of its digits is 360, while the sum is 24.

The square root of 51112149 is about 7149.2761172024. The cubic root of 51112149 is about 371.1146058219.

It can be divided in two parts, 5111 and 2149, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 51112149 in words is "fifty-one million, one hundred twelve thousand, one hundred forty-nine".