61250128 has 10 divisors (see below), whose sum is σ = 118672154. Its totient is φ = 30625056.

The previous prime is 61250113. The next prime is 61250143. The reversal of 61250128 is 82105216.

It is an interprime number because it is at equal distance from previous prime (61250113) and next prime (61250143).

It can be written as a sum of positive squares in only one way, i.e., 61027344 + 222784 = 7812^2 + 472^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1914051 + ... + 1914082.

Almost surely, 2^61250128 is an apocalyptic number.

It is an amenable number.

61250128 is a deficient number, since it is larger than the sum of its proper divisors (57422026).

61250128 is a wasteful number, since it uses less digits than its factorization.

61250128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828141 (or 3828135 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 61250128 is about 7826.2460988650. The cubic root of 61250128 is about 394.1870327450.

It can be divided in two parts, 61250 and 128, that multiplied together give a square (7840000 = 2800²).

The spelling of 61250128 in words is "sixty-one million, two hundred fifty thousand, one hundred twenty-eight".