61130465 has 32 divisors (see below), whose sum is σ = 83016576. Its totient is φ = 42831360.

The previous prime is 61130449. The next prime is 61130473. The reversal of 61130465 is 56403116.

61130465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61130465 - 2⁴ = 61130449 is a prime.

It is a super-2 number, since 2×61130465² = 7473867502232450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195149 + ... + 195461.

It is an arithmetic number, because the mean of its divisors is an integer number (2594268).

Almost surely, 2^61130465 is an apocalyptic number.

It is an amenable number.

61130465 is a deficient number, since it is larger than the sum of its proper divisors (21886111).

61130465 is a wasteful number, since it uses less digits than its factorization.

61130465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61130465 is about 7818.5973806048. The cubic root of 61130465 is about 393.9301606051.

The spelling of 61130465 in words is "sixty-one million, one hundred thirty thousand, four hundred sixty-five".