131867461 has 4 divisors (see below), whose sum is σ = 143855424. Its totient is φ = 119879500.

The previous prime is 131867431. The next prime is 131867479. The reversal of 131867461 is 164768131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131867461 - 2⁹ = 131866949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131867461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131867401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5993965 + ... + 5993986.

It is an arithmetic number, because the mean of its divisors is an integer number (35963856).

Almost surely, 2^131867461 is an apocalyptic number.

131867461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131867461 is a deficient number, since it is larger than the sum of its proper divisors (11987963).

131867461 is a wasteful number, since it uses less digits than its factorization.

131867461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11987962.

The product of its digits is 24192, while the sum is 37.

The square root of 131867461 is about 11483.3558248449. The cubic root of 131867461 is about 508.9938654224.

The spelling of 131867461 in words is "one hundred thirty-one million, eight hundred sixty-seven thousand, four hundred sixty-one".