137948905 has 16 divisors (see below), whose sum is σ = 168122304. Its totient is φ = 108646720.

The previous prime is 137948893. The next prime is 137948939. The reversal of 137948905 is 509849731.

It is a happy number.

It is not a de Polignac number, because 137948905 - 2⁷ = 137948777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203427 + ... + 204103.

It is an arithmetic number, because the mean of its divisors is an integer number (10507644).

Almost surely, 2^137948905 is an apocalyptic number.

It is an amenable number.

137948905 is a deficient number, since it is larger than the sum of its proper divisors (30173399).

137948905 is an equidigital number, since it uses as much as digits as its factorization.

137948905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 137948905 is about 11745.1651755095. The cubic root of 137948905 is about 516.7011393348.

The spelling of 137948905 in words is "one hundred thirty-seven million, nine hundred forty-eight thousand, nine hundred five".