61130816 has 28 divisors (see below), whose sum is σ = 121627392. Its totient is φ = 30484608.

The previous prime is 61130813. The next prime is 61130831. The reversal of 61130816 is 61803116.

It is a super-3 number, since 3×61130816³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61130813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28601 + ... + 30663.

Almost surely, 2^61130816 is an apocalyptic number.

It is an amenable number.

61130816 is a deficient number, since it is larger than the sum of its proper divisors (60496576).

61130816 is a wasteful number, since it uses less digits than its factorization.

61130816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538 (or 2528 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 61130816 is about 7818.6198270539. The cubic root of 61130816 is about 393.9309145621.

The spelling of 61130816 in words is "sixty-one million, one hundred thirty thousand, eight hundred sixteen".