61214931 has 12 divisors (see below), whose sum is σ = 88498800. Its totient is φ = 40774320.

The previous prime is 61214921. The next prime is 61214971. The reversal of 61214931 is 13941216.

61214931 is a `hidden beast` number, since 612 + 1 + 49 + 3 + 1 = 666.

It is not a de Polignac number, because 61214931 - 2⁵ = 61214899 is a prime.

It is a super-2 number, since 2×61214931² = 7494535554669522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61214895 and 61214904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61214921) 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, 11746 + ... + 16136.

It is an arithmetic number, because the mean of its divisors is an integer number (7374900).

Almost surely, 2^61214931 is an apocalyptic number.

61214931 is a deficient number, since it is larger than the sum of its proper divisors (27283869).

61214931 is a wasteful number, since it uses less digits than its factorization.

61214931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946 (or 5943 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 61214931 is about 7823.9971242326. The cubic root of 61214931 is about 394.1115125795. Note that the first 3 decimals are identical.

The spelling of 61214931 in words is "sixty-one million, two hundred fourteen thousand, nine hundred thirty-one".