61994259 has 12 divisors (see below), whose sum is σ = 91237536. Its totient is φ = 40549392.

The previous prime is 61994249. The next prime is 61994267. The reversal of 61994259 is 95249916.

61994259 is a `hidden beast` number, since 619 + 9 + 4 + 25 + 9 = 666.

It is not a de Polignac number, because 61994259 - 2⁴ = 61994243 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61994249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64507 + ... + 65460.

It is an arithmetic number, because the mean of its divisors is an integer number (7603128).

Almost surely, 2^61994259 is an apocalyptic number.

61994259 is a deficient number, since it is larger than the sum of its proper divisors (29243277).

61994259 is a wasteful number, since it uses less digits than its factorization.

61994259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130026 (or 130023 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 61994259 is about 7873.6433117077. The cubic root of 61994259 is about 395.7769443244.

The spelling of 61994259 in words is "sixty-one million, nine hundred ninety-four thousand, two hundred fifty-nine".