139589737 has 16 divisors (see below), whose sum is σ = 176262912. Its totient is φ = 107712000.

The previous prime is 139589719. The next prime is 139589741. The reversal of 139589737 is 737985931.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-139589737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139589717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22764 + ... + 28237.

It is an arithmetic number, because the mean of its divisors is an integer number (11016432).

Almost surely, 2^139589737 is an apocalyptic number.

139589737 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

139589737 is a deficient number, since it is larger than the sum of its proper divisors (36673175).

139589737 is a wasteful number, since it uses less digits than its factorization.

139589737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51048.

The product of its digits is 1428840, while the sum is 52.

The square root of 139589737 is about 11814.8100704159. The cubic root of 139589737 is about 518.7417024463.

The spelling of 139589737 in words is "one hundred thirty-nine million, five hundred eighty-nine thousand, seven hundred thirty-seven".