131654469 has 4 divisors (see below), whose sum is σ = 175539296. Its totient is φ = 87769644.

The previous prime is 131654449. The next prime is 131654483. The reversal of 131654469 is 964456131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131654469 - 2⁵ = 131654437 is a prime.

It is a super-2 number, since 2×131654469² = 34665798415343922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131654449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21942409 + ... + 21942414.

It is an arithmetic number, because the mean of its divisors is an integer number (43884824).

Almost surely, 2^131654469 is an apocalyptic number.

It is an amenable number.

131654469 is a deficient number, since it is larger than the sum of its proper divisors (43884827).

131654469 is an equidigital number, since it uses as much as digits as its factorization.

131654469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43884826.

The product of its digits is 77760, while the sum is 39.

The square root of 131654469 is about 11474.0781329046. The cubic root of 131654469 is about 508.7196758644.

The spelling of 131654469 in words is "one hundred thirty-one million, six hundred fifty-four thousand, four hundred sixty-nine".