131966901 has 40 divisors (see below), whose sum is σ = 220924704. Its totient is φ = 77798880.

The previous prime is 131966899. The next prime is 131966917. The reversal of 131966901 is 109669131.

It is not a de Polignac number, because 131966901 - 2¹ = 131966899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131966921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30966 + ... + 34968.

Almost surely, 2^131966901 is an apocalyptic number.

131966901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131966901 is a deficient number, since it is larger than the sum of its proper divisors (88957803).

131966901 is a wasteful number, since it uses less digits than its factorization.

131966901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 131966901 is about 11487.6847536830. The cubic root of 131966901 is about 509.1217757558.

The spelling of 131966901 in words is "one hundred thirty-one million, nine hundred sixty-six thousand, nine hundred one".