131506043 has 2 divisors, whose sum is σ = 131506044. Its totient is φ = 131506042.

The previous prime is 131506031. The next prime is 131506099. The reversal of 131506043 is 340605131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (340605131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131506043 is a prime.

It is not a weakly prime, because it can be changed into another prime (131506013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65753021 + 65753022.

It is an arithmetic number, because the mean of its divisors is an integer number (65753022).

Almost surely, 2^131506043 is an apocalyptic number.

131506043 is a deficient number, since it is larger than the sum of its proper divisors (1).

131506043 is an equidigital number, since it uses as much as digits as its factorization.

131506043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 131506043 is about 11467.6084254739. The cubic root of 131506043 is about 508.5284287300.

The spelling of 131506043 in words is "one hundred thirty-one million, five hundred six thousand, forty-three".