61274128 has 10 divisors (see below), whose sum is σ = 118718654. Its totient is φ = 30637056.

The previous prime is 61274123. The next prime is 61274149. The reversal of 61274128 is 82147216.

It can be written as a sum of positive squares in only one way, i.e., 58491904 + 2782224 = 7648^2 + 1668^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61274128.

It is not an unprimeable number, because it can be changed into a prime (61274123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1914801 + ... + 1914832.

Almost surely, 2^61274128 is an apocalyptic number.

It is an amenable number.

61274128 is a deficient number, since it is larger than the sum of its proper divisors (57444526).

61274128 is a wasteful number, since it uses less digits than its factorization.

61274128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829641 (or 3829635 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 61274128 is about 7827.7792508476. The cubic root of 61274128 is about 394.2385115675.

The spelling of 61274128 in words is "sixty-one million, two hundred seventy-four thousand, one hundred twenty-eight".