131504029 has 2 divisors, whose sum is σ = 131504030. Its totient is φ = 131504028.

The previous prime is 131504017. The next prime is 131504053. The reversal of 131504029 is 920405131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68856804 + 62647225 = 8298^2 + 7915^2 .

It is an emirp because it is prime and its reverse (920405131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131504029 - 2⁷ = 131503901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131503994 and 131504012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131504059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65752014 + 65752015.

It is an arithmetic number, because the mean of its divisors is an integer number (65752015).

Almost surely, 2^131504029 is an apocalyptic number.

It is an amenable number.

131504029 is a deficient number, since it is larger than the sum of its proper divisors (1).

131504029 is an equidigital number, since it uses as much as digits as its factorization.

131504029 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 25.

The square root of 131504029 is about 11467.5206125823. The cubic root of 131504029 is about 508.5258326986.

The spelling of 131504029 in words is "one hundred thirty-one million, five hundred four thousand, twenty-nine".