61318086 has 32 divisors (see below), whose sum is σ = 126094848. Its totient is φ = 19867680.

The previous prime is 61318057. The next prime is 61318121. The reversal of 61318086 is 68081316.

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, 69480 + ... + 70356.

It is an arithmetic number, because the mean of its divisors is an integer number (3940464).

Almost surely, 2^61318086 is an apocalyptic number.

61318086 is an abundant number, since it is smaller than the sum of its proper divisors (64776762).

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

61318086 is a wasteful number, since it uses less digits than its factorization.

61318086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 61318086 is about 7830.5865680676. The cubic root of 61318086 is about 394.3327644741.

The spelling of 61318086 in words is "sixty-one million, three hundred eighteen thousand, eighty-six".