61117005 has 16 divisors (see below), whose sum is σ = 97896960. Its totient is φ = 32559168.

The previous prime is 61116973. The next prime is 61117031. The reversal of 61117005 is 50071116.

It is not a de Polignac number, because 61117005 - 2⁵ = 61116973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16516 + ... + 19874.

It is an arithmetic number, because the mean of its divisors is an integer number (6118560).

Almost surely, 2^61117005 is an apocalyptic number.

It is an amenable number.

61117005 is a deficient number, since it is larger than the sum of its proper divisors (36779955).

61117005 is a wasteful number, since it uses less digits than its factorization.

61117005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4580.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 61117005 is about 7817.7365650168. The cubic root of 61117005 is about 393.9012460033.

The spelling of 61117005 in words is "sixty-one million, one hundred seventeen thousand, five".