61251874 has 4 divisors (see below), whose sum is σ = 91877814. Its totient is φ = 30625936.

The previous prime is 61251871. The next prime is 61251887. The reversal of 61251874 is 47815216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57078025 + 4173849 = 7555^2 + 2043^2 .

It is not an unprimeable number, because it can be changed into a prime (61251871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15312967 + ... + 15312970.

Almost surely, 2^61251874 is an apocalyptic number.

61251874 is a deficient number, since it is larger than the sum of its proper divisors (30625940).

61251874 is a wasteful number, since it uses less digits than its factorization.

61251874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30625939.

The product of its digits is 13440, while the sum is 34.

The square root of 61251874 is about 7826.3576458018. The cubic root of 61251874 is about 394.1907782829.

The spelling of 61251874 in words is "sixty-one million, two hundred fifty-one thousand, eight hundred seventy-four".