137545418 has 8 divisors (see below), whose sum is σ = 208445412. Its totient is φ = 68063616.

The previous prime is 137545411. The next prime is 137545459. The reversal of 137545418 is 814545731.

It can be written as a sum of positive squares in 2 ways, for example, as 122389969 + 15155449 = 11063^2 + 3893^2 .

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

It is not an unprimeable number, because it can be changed into a prime (137545411) 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, 354305 + ... + 354692.

Almost surely, 2^137545418 is an apocalyptic number.

137545418 is a deficient number, since it is larger than the sum of its proper divisors (70899994).

137545418 is an equidigital number, since it uses as much as digits as its factorization.

137545418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709096.

The product of its digits is 67200, while the sum is 38.

The square root of 137545418 is about 11727.9758696887. The cubic root of 137545418 is about 516.1968806822.

The spelling of 137545418 in words is "one hundred thirty-seven million, five hundred forty-five thousand, four hundred eighteen".