137040905 has 8 divisors (see below), whose sum is σ = 166531200. Its totient is φ = 108244656.

The previous prime is 137040889. The next prime is 137040919. The reversal of 137040905 is 509040731.

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

It is a cyclic number.

It is not a de Polignac number, because 137040905 - 2⁴ = 137040889 is a prime.

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, 173075 + ... + 173864.

It is an arithmetic number, because the mean of its divisors is an integer number (20816400).

Almost surely, 2^137040905 is an apocalyptic number.

It is an amenable number.

137040905 is a deficient number, since it is larger than the sum of its proper divisors (29490295).

137040905 is an equidigital number, since it uses as much as digits as its factorization.

137040905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347023.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 137040905 is about 11706.4471553072. The cubic root of 137040905 is about 515.5649752227.

The spelling of 137040905 in words is "one hundred thirty-seven million, forty thousand, nine hundred five".