137809485 has 32 divisors (see below), whose sum is σ = 267269760. Its totient is φ = 66816000.

The previous prime is 137809457. The next prime is 137809493. The reversal of 137809485 is 584908731.

137809485 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 137809485 - 2⁹ = 137808973 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 137809485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44916 + ... + 47885.

It is an arithmetic number, because the mean of its divisors is an integer number (8352180).

Almost surely, 2^137809485 is an apocalyptic number.

137809485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137809485 is a deficient number, since it is larger than the sum of its proper divisors (129460275).

137809485 is a wasteful number, since it uses less digits than its factorization.

137809485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92826 (or 92820 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 137809485 is about 11739.2284669820. The cubic root of 137809485 is about 516.5270102363.

The spelling of 137809485 in words is "one hundred thirty-seven million, eight hundred nine thousand, four hundred eighty-five".