131671197 has 64 divisors (see below), whose sum is σ = 241254400. Its totient is φ = 69284160.

The previous prime is 131671193. The next prime is 131671201. The reversal of 131671197 is 791176131.

It is an interprime number because it is at equal distance from previous prime (131671193) and next prime (131671201).

It is not a de Polignac number, because 131671197 - 2² = 131671193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131671193) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132372 + ... + 133362.

It is an arithmetic number, because the mean of its divisors is an integer number (3769600).

Almost surely, 2^131671197 is an apocalyptic number.

It is an amenable number.

131671197 is a deficient number, since it is larger than the sum of its proper divisors (109583203).

131671197 is a wasteful number, since it uses less digits than its factorization.

131671197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1057 counting only the distinct ones).

The product of its digits is 7938, while the sum is 36.

The square root of 131671197 is about 11474.8070572014. The cubic root of 131671197 is about 508.7412209043.

The spelling of 131671197 in words is "one hundred thirty-one million, six hundred seventy-one thousand, one hundred ninety-seven".