131246429 has 2 divisors, whose sum is σ = 131246430. Its totient is φ = 131246428.

The previous prime is 131246417. The next prime is 131246447. The reversal of 131246429 is 924642131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130759225 + 487204 = 11435^2 + 698^2 .

It is a cyclic number.

It is not a de Polignac number, because 131246429 - 2²⁰ = 130197853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131246395 and 131246404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131246629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65623214 + 65623215.

It is an arithmetic number, because the mean of its divisors is an integer number (65623215).

Almost surely, 2^131246429 is an apocalyptic number.

It is an amenable number.

131246429 is a deficient number, since it is larger than the sum of its proper divisors (1).

131246429 is an equidigital number, since it uses as much as digits as its factorization.

131246429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 131246429 is about 11456.2833851123. The cubic root of 131246429 is about 508.1935694115.

The spelling of 131246429 in words is "one hundred thirty-one million, two hundred forty-six thousand, four hundred twenty-nine".