131633429 has 4 divisors (see below), whose sum is σ = 131662860. Its totient is φ = 131604000.

The previous prime is 131633371. The next prime is 131633483. The reversal of 131633429 is 924336131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115068529 + 16564900 = 10727^2 + 4070^2 .

It is a cyclic number.

It is not a de Polignac number, because 131633429 - 2²⁴ = 114856213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131633395 and 131633404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131633129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6464 + ... + 17465.

It is an arithmetic number, because the mean of its divisors is an integer number (32915715).

Almost surely, 2^131633429 is an apocalyptic number.

It is an amenable number.

131633429 is a deficient number, since it is larger than the sum of its proper divisors (29431).

131633429 is an equidigital number, since it uses as much as digits as its factorization.

131633429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29430.

The product of its digits is 11664, while the sum is 32.

The square root of 131633429 is about 11473.1612470147. The cubic root of 131633429 is about 508.6925745380.

The spelling of 131633429 in words is "one hundred thirty-one million, six hundred thirty-three thousand, four hundred twenty-nine".