137652639 has 16 divisors (see below), whose sum is σ = 186929280. Its totient is φ = 90082080.

The previous prime is 137652629. The next prime is 137652649. The reversal of 137652639 is 936256731.

137652639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (137652629) and next prime (137652649).

It is not a de Polignac number, because 137652639 - 2⁹ = 137652127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137652639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137652629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65497 + ... + 67565.

It is an arithmetic number, because the mean of its divisors is an integer number (11683080).

Almost surely, 2^137652639 is an apocalyptic number.

137652639 is a deficient number, since it is larger than the sum of its proper divisors (49276641).

137652639 is a wasteful number, since it uses less digits than its factorization.

137652639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470.

The product of its digits is 204120, while the sum is 42.

The square root of 137652639 is about 11732.5461431012. The cubic root of 137652639 is about 516.3309764380.

The spelling of 137652639 in words is "one hundred thirty-seven million, six hundred fifty-two thousand, six hundred thirty-nine".