61577132 has 6 divisors (see below), whose sum is σ = 107759988. Its totient is φ = 30788564.

The previous prime is 61577123. The next prime is 61577143. The reversal of 61577132 is 23177516.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7697138 + ... + 7697145.

It is an arithmetic number, because the mean of its divisors is an integer number (17959998).

Almost surely, 2^61577132 is an apocalyptic number.

It is an amenable number.

61577132 is a deficient number, since it is larger than the sum of its proper divisors (46182856).

61577132 is a wasteful number, since it uses less digits than its factorization.

61577132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15394287 (or 15394285 counting only the distinct ones).

The product of its digits is 8820, while the sum is 32.

The square root of 61577132 is about 7847.1097864118. The cubic root of 61577132 is about 394.8872871804.

The spelling of 61577132 in words is "sixty-one million, five hundred seventy-seven thousand, one hundred thirty-two".