131151533 has 2 divisors, whose sum is σ = 131151534. Its totient is φ = 131151532.

The previous prime is 131151511. The next prime is 131151541. The reversal of 131151533 is 335151131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100260169 + 30891364 = 10013^2 + 5558^2 .

It is a cyclic number.

It is not a de Polignac number, because 131151533 - 2²⁰ = 130102957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131151499 and 131151508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131151563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65575766 + 65575767.

It is an arithmetic number, because the mean of its divisors is an integer number (65575767).

Almost surely, 2^131151533 is an apocalyptic number.

It is an amenable number.

131151533 is a deficient number, since it is larger than the sum of its proper divisors (1).

131151533 is an equidigital number, since it uses as much as digits as its factorization.

131151533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 675, while the sum is 23.

The square root of 131151533 is about 11452.1409788738. The cubic root of 131151533 is about 508.0710589936.

The spelling of 131151533 in words is "one hundred thirty-one million, one hundred fifty-one thousand, five hundred thirty-three".