137324545 has 4 divisors (see below), whose sum is σ = 164789460. Its totient is φ = 109859632.

The previous prime is 137324507. The next prime is 137324569. The reversal of 137324545 is 545423731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75968656 + 61355889 = 8716^2 + 7833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137324545 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137324545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13732450 + ... + 13732459.

It is an arithmetic number, because the mean of its divisors is an integer number (41197365).

Almost surely, 2^137324545 is an apocalyptic number.

It is an amenable number.

137324545 is a deficient number, since it is larger than the sum of its proper divisors (27464915).

137324545 is an equidigital number, since it uses as much as digits as its factorization.

137324545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27464914.

The product of its digits is 50400, while the sum is 34.

The square root of 137324545 is about 11718.5555850540. Note that the first 4 decimals coincide. The cubic root of 137324545 is about 515.9204264550.

The spelling of 137324545 in words is "one hundred thirty-seven million, three hundred twenty-four thousand, five hundred forty-five".