61015104 has 42 divisors (see below), whose sum is σ = 174890430. Its totient is φ = 20338176.

The previous prime is 61015063. The next prime is 61015121. The reversal of 61015104 is 40151016.

61015104 is a `hidden beast` number, since 610 + 1 + 51 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 60093504 + 921600 = 7752^2 + 960^2 .

It is a super-2 number, since 2×61015104² = 7445685832261632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52389 + ... + 53540.

Almost surely, 2^61015104 is an apocalyptic number.

61015104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61015104 is an abundant number, since it is smaller than the sum of its proper divisors (113875326).

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

61015104 is a wasteful number, since it uses less digits than its factorization.

61015104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105947 (or 105934 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 61015104 is about 7811.2165505765. The cubic root of 61015104 is about 393.6822057129.

The spelling of 61015104 in words is "sixty-one million, fifteen thousand, one hundred four".