61864132 has 24 divisors (see below), whose sum is σ = 118353312. Its totient is φ = 28060800.

The previous prime is 61864109. The next prime is 61864147. The reversal of 61864132 is 23146816.

It is a happy number.

It is a super-2 number, since 2×61864132² = 7654341656226848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61864094 and 61864103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24907 + ... + 27277.

It is an arithmetic number, because the mean of its divisors is an integer number (4931388).

Almost surely, 2^61864132 is an apocalyptic number.

It is an amenable number.

61864132 is a deficient number, since it is larger than the sum of its proper divisors (56489180).

61864132 is a wasteful number, since it uses less digits than its factorization.

61864132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2977 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 61864132 is about 7865.3755155110. The cubic root of 61864132 is about 395.4998361784.

The spelling of 61864132 in words is "sixty-one million, eight hundred sixty-four thousand, one hundred thirty-two".