61191204 has 12 divisors (see below), whose sum is σ = 142779504. Its totient is φ = 20397064.

The previous prime is 61191199. The next prime is 61191223. The reversal of 61191204 is 40219116.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2549622 + ... + 2549645.

It is an arithmetic number, because the mean of its divisors is an integer number (11898292).

Almost surely, 2^61191204 is an apocalyptic number.

It is an amenable number.

61191204 is an abundant number, since it is smaller than the sum of its proper divisors (81588300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61191204 is a wasteful number, since it uses less digits than its factorization.

61191204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099274 (or 5099272 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 61191204 is about 7822.4806807048. The cubic root of 61191204 is about 394.0605865928.

The spelling of 61191204 in words is "sixty-one million, one hundred ninety-one thousand, two hundred four".