61812492 has 48 divisors (see below), whose sum is σ = 165430272. Its totient is φ = 17596800.

The previous prime is 61812479. The next prime is 61812511. The reversal of 61812492 is 29421816.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25117 + ... + 27467.

It is an arithmetic number, because the mean of its divisors is an integer number (3446464).

Almost surely, 2^61812492 is an apocalyptic number.

It is an amenable number.

61812492 is an abundant number, since it is smaller than the sum of its proper divisors (103617780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61812492 is a wasteful number, since it uses less digits than its factorization.

61812492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678 (or 2676 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 61812492 is about 7862.0920879878. The cubic root of 61812492 is about 395.3897600257.

The spelling of 61812492 in words is "sixty-one million, eight hundred twelve thousand, four hundred ninety-two".