61591014 has 24 divisors (see below), whose sum is σ = 137055360. Its totient is φ = 19975248.

The previous prime is 61591003. The next prime is 61591021. The reversal of 61591014 is 41019516.

61591014 is a `hidden beast` number, since 61 + 591 + 0 + 14 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45574 + ... + 46905.

It is an arithmetic number, because the mean of its divisors is an integer number (5710640).

Almost surely, 2^61591014 is an apocalyptic number.

61591014 is an abundant number, since it is smaller than the sum of its proper divisors (75464346).

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

61591014 is a wasteful number, since it uses less digits than its factorization.

61591014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92524 (or 92521 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 61591014 is about 7847.9942660530. The cubic root of 61591014 is about 394.9169595239.

The spelling of 61591014 in words is "sixty-one million, five hundred ninety-one thousand, fourteen".