131903108 has 6 divisors (see below), whose sum is σ = 230830446. Its totient is φ = 65951552.

The previous prime is 131903087. The next prime is 131903141. The reversal of 131903108 is 801309131.

It can be written as a sum of positive squares in only one way, i.e., 114746944 + 17156164 = 10712^2 + 4142^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16487885 + ... + 16487892.

It is an arithmetic number, because the mean of its divisors is an integer number (38471741).

Almost surely, 2^131903108 is an apocalyptic number.

It is an amenable number.

131903108 is a deficient number, since it is larger than the sum of its proper divisors (98927338).

131903108 is a wasteful number, since it uses less digits than its factorization.

131903108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32975781 (or 32975779 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 131903108 is about 11484.9078359384. The cubic root of 131903108 is about 509.0397257873.

The spelling of 131903108 in words is "one hundred thirty-one million, nine hundred three thousand, one hundred eight".