137523705 has 16 divisors (see below), whose sum is σ = 240041664. Its totient is φ = 66678080.

The previous prime is 137523697. The next prime is 137523773. The reversal of 137523705 is 507325731.

137523705 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 137523705 - 2³ = 137523697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416574 + ... + 416903.

It is an arithmetic number, because the mean of its divisors is an integer number (15002604).

Almost surely, 2^137523705 is an apocalyptic number.

137523705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137523705 is a deficient number, since it is larger than the sum of its proper divisors (102517959).

137523705 is a wasteful number, since it uses less digits than its factorization.

137523705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833496.

The product of its (nonzero) digits is 22050, while the sum is 33.

The square root of 137523705 is about 11727.0501405938. The cubic root of 137523705 is about 516.1697168725.

The spelling of 137523705 in words is "one hundred thirty-seven million, five hundred twenty-three thousand, seven hundred five".