131990067 has 54 divisors (see below), whose sum is σ = 220613484. Its totient is φ = 78800040.

The previous prime is 131989997. The next prime is 131990069. The reversal of 131990067 is 760099131.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 131990067 - 2⁸ = 131989811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131990069) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1969968 + ... + 1970034.

Almost surely, 2^131990067 is an apocalyptic number.

131990067 is a deficient number, since it is larger than the sum of its proper divisors (88623417).

131990067 is an frugal number, since it uses more digits than its factorization.

131990067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 131990067 is about 11488.6930066044. The cubic root of 131990067 is about 509.1515651068.

The spelling of 131990067 in words is "one hundred thirty-one million, nine hundred ninety thousand, sixty-seven".