137944845 has 24 divisors (see below), whose sum is σ = 251690400. Its totient is φ = 69698016.

The previous prime is 137944819. The next prime is 137944861. The reversal of 137944845 is 548449731.

137944845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 137944845 - 2¹² = 137940749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 137944845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79815 + ... + 81524.

It is an arithmetic number, because the mean of its divisors is an integer number (10487100).

Almost surely, 2^137944845 is an apocalyptic number.

137944845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137944845 is a deficient number, since it is larger than the sum of its proper divisors (113745555).

137944845 is a wasteful number, since it uses less digits than its factorization.

137944845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161369 (or 161366 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 137944845 is about 11744.9923371623. The cubic root of 137944845 is about 516.6960702424.

The spelling of 137944845 in words is "one hundred thirty-seven million, nine hundred forty-four thousand, eight hundred forty-five".