131426901 has 16 divisors (see below), whose sum is σ = 194883520. Its totient is φ = 87538320.

The previous prime is 131426891. The next prime is 131426903. The reversal of 131426901 is 109624131.

It is not a de Polignac number, because 131426901 - 2⁶ = 131426837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131426903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54246 + ... + 56616.

It is an arithmetic number, because the mean of its divisors is an integer number (12180220).

Almost surely, 2^131426901 is an apocalyptic number.

It is an amenable number.

131426901 is a deficient number, since it is larger than the sum of its proper divisors (63456619).

131426901 is a wasteful number, since it uses less digits than its factorization.

131426901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433 (or 4427 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 131426901 is about 11464.1572302547. The cubic root of 131426901 is about 508.4263953122.

The spelling of 131426901 in words is "one hundred thirty-one million, four hundred twenty-six thousand, nine hundred one".