61311004 has 6 divisors (see below), whose sum is σ = 107294264. Its totient is φ = 30655500.

The previous prime is 61310987. The next prime is 61311037. The reversal of 61311004 is 40011316.

It is a super-2 number, since 2×61311004² = 7518078422976032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7663872 + ... + 7663879.

Almost surely, 2^61311004 is an apocalyptic number.

It is an amenable number.

61311004 is a deficient number, since it is larger than the sum of its proper divisors (45983260).

61311004 is a wasteful number, since it uses less digits than its factorization.

61311004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15327755 (or 15327753 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 61311004 is about 7830.1343538920. The cubic root of 61311004 is about 394.3175825903.

The spelling of 61311004 in words is "sixty-one million, three hundred eleven thousand, four".