59691138 has 72 divisors (see below), whose sum is σ = 135949968. Its totient is φ = 17454528.

The previous prime is 59691119. The next prime is 59691139. The reversal of 59691138 is 83119695.

It is a self number, because there is not a number n which added to its sum of digits gives 59691138.

It is not an unprimeable number, because it can be changed into a prime (59691139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1388145 + ... + 1388187.

It is an arithmetic number, because the mean of its divisors is an integer number (1888194).

Almost surely, 2^59691138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 59691138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67974984).

59691138 is an abundant number, since it is smaller than the sum of its proper divisors (76258830).

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

59691138 is a wasteful number, since it uses less digits than its factorization.

59691138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 98 counting only the distinct ones).

The product of its digits is 58320, while the sum is 42.

The square root of 59691138 is about 7726.0040124245. The cubic root of 59691138 is about 390.8138560111.

The spelling of 59691138 in words is "fifty-nine million, six hundred ninety-one thousand, one hundred thirty-eight".