61495312 has 20 divisors (see below), whose sum is σ = 123256620. Its totient is φ = 29687168.

The previous prime is 61495309. The next prime is 61495321. The reversal of 61495312 is 21359416.

It can be written as a sum of positive squares in 2 ways, for example, as 34621456 + 26873856 = 5884^2 + 5184^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65803 + ... + 66730.

It is an arithmetic number, because the mean of its divisors is an integer number (6162831).

Almost surely, 2^61495312 is an apocalyptic number.

It is an amenable number.

61495312 is an abundant number, since it is smaller than the sum of its proper divisors (61761308).

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

61495312 is a wasteful number, since it uses less digits than its factorization.

61495312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132570 (or 132564 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 61495312 is about 7841.8946690197. The cubic root of 61495312 is about 394.7123088091.

The spelling of 61495312 in words is "sixty-one million, four hundred ninety-five thousand, three hundred twelve".