61312107 has 8 divisors (see below), whose sum is σ = 86052160. Its totient is φ = 38723400.

The previous prime is 61312103. The next prime is 61312133. The reversal of 61312107 is 70121316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61312107 - 2² = 61312103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61312103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537769 + ... + 537882.

It is an arithmetic number, because the mean of its divisors is an integer number (10756520).

Almost surely, 2^61312107 is an apocalyptic number.

61312107 is a deficient number, since it is larger than the sum of its proper divisors (24740053).

61312107 is a wasteful number, since it uses less digits than its factorization.

61312107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075673.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 61312107 is about 7830.2047865940. The cubic root of 61312107 is about 394.3199471995.

It can be divided in two parts, 613 and 12107, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 61312107 in words is "sixty-one million, three hundred twelve thousand, one hundred seven".