61345004 has 24 divisors (see below), whose sum is σ = 125545728. Its totient is φ = 25678800.

The previous prime is 61345003. The next prime is 61345007. The reversal of 61345004 is 40054316.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61345003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24272 + ... + 26679.

It is an arithmetic number, because the mean of its divisors is an integer number (5231072).

Almost surely, 2^61345004 is an apocalyptic number.

It is an amenable number.

61345004 is an abundant number, since it is smaller than the sum of its proper divisors (64200724).

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

61345004 is a wasteful number, since it uses less digits than its factorization.

61345004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51005 (or 51003 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 61345004 is about 7832.3051523801. The cubic root of 61345004 is about 394.3904586890.

The spelling of 61345004 in words is "sixty-one million, three hundred forty-five thousand, four".