137636545 has 8 divisors (see below), whose sum is σ = 165369960. Its totient is φ = 109971840.

The previous prime is 137636519. The next prime is 137636567. The reversal of 137636545 is 545636731.

It can be written as a sum of positive squares in 4 ways, for example, as 9290304 + 128346241 = 3048^2 + 11329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137636545 - 2⁷ = 137636417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137636498 and 137636507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12660 + ... + 20869.

It is an arithmetic number, because the mean of its divisors is an integer number (20671245).

Almost surely, 2^137636545 is an apocalyptic number.

It is an amenable number.

137636545 is a deficient number, since it is larger than the sum of its proper divisors (27733415).

137636545 is an equidigital number, since it uses as much as digits as its factorization.

137636545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34355.

The product of its digits is 226800, while the sum is 40.

The square root of 137636545 is about 11731.8602531738. The cubic root of 137636545 is about 516.3108529478.

The spelling of 137636545 in words is "one hundred thirty-seven million, six hundred thirty-six thousand, five hundred forty-five".