131851603 has 12 divisors (see below), whose sum is σ = 147702960. Its totient is φ = 117507936.

The previous prime is 131851597. The next prime is 131851627. The reversal of 131851603 is 306158131.

It is a de Polignac number, because none of the positive numbers 2^k-131851603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131851633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8551 + ... + 18352.

It is an arithmetic number, because the mean of its divisors is an integer number (12308580).

Almost surely, 2^131851603 is an apocalyptic number.

131851603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131851603 is a deficient number, since it is larger than the sum of its proper divisors (15851357).

131851603 is a wasteful number, since it uses less digits than its factorization.

131851603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26958 (or 26945 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 131851603 is about 11482.6653264823. The cubic root of 131851603 is about 508.9734612271.

The spelling of 131851603 in words is "one hundred thirty-one million, eight hundred fifty-one thousand, six hundred three".