137605233 has 4 divisors (see below), whose sum is σ = 183473648. Its totient is φ = 91736820.

The previous prime is 137605231. The next prime is 137605271. The reversal of 137605233 is 332506731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 137605233 - 2¹ = 137605231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137605233.

It is not an unprimeable number, because it can be changed into a prime (137605231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22934203 + ... + 22934208.

It is an arithmetic number, because the mean of its divisors is an integer number (45868412).

Almost surely, 2^137605233 is an apocalyptic number.

It is an amenable number.

137605233 is a deficient number, since it is larger than the sum of its proper divisors (45868415).

137605233 is an equidigital number, since it uses as much as digits as its factorization.

137605233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45868414.

The product of its (nonzero) digits is 11340, while the sum is 30.

The square root of 137605233 is about 11730.5256915451. The cubic root of 137605233 is about 516.2716967979.

The spelling of 137605233 in words is "one hundred thirty-seven million, six hundred five thousand, two hundred thirty-three".