131537767 has 2 divisors, whose sum is σ = 131537768. Its totient is φ = 131537766.

The previous prime is 131537753. The next prime is 131537797. The reversal of 131537767 is 767735131.

It is a weak prime.

It is an emirp because it is prime and its reverse (767735131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131537767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131537797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65768883 + 65768884.

It is an arithmetic number, because the mean of its divisors is an integer number (65768884).

Almost surely, 2^131537767 is an apocalyptic number.

131537767 is a deficient number, since it is larger than the sum of its proper divisors (1).

131537767 is an equidigital number, since it uses as much as digits as its factorization.

131537767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92610, while the sum is 40.

The square root of 131537767 is about 11468.9915424156. The cubic root of 131537767 is about 508.5693172409.

The spelling of 131537767 in words is "one hundred thirty-one million, five hundred thirty-seven thousand, seven hundred sixty-seven".