61147004 has 12 divisors (see below), whose sum is σ = 110459328. Its totient is φ = 29587200.

The previous prime is 61147003. The next prime is 61147019. The reversal of 61147004 is 40074116.

61147004 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

61147004 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61147003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246437 + ... + 246684.

It is an arithmetic number, because the mean of its divisors is an integer number (9204944).

Almost surely, 2^61147004 is an apocalyptic number.

It is an amenable number.

61147004 is a deficient number, since it is larger than the sum of its proper divisors (49312324).

61147004 is a wasteful number, since it uses less digits than its factorization.

61147004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493156 (or 493154 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 61147004 is about 7819.6549796011. The cubic root of 61147004 is about 393.9656836647.

The spelling of 61147004 in words is "sixty-one million, one hundred forty-seven thousand, four".