131269404 has 96 divisors (see below), whose sum is σ = 371105280. Its totient is φ = 35278848.

The previous prime is 131269373. The next prime is 131269409. The reversal of 131269404 is 404962131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131269409) 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 31 ways as a sum of consecutive naturals, for example, 371692 + ... + 372044.

It is an arithmetic number, because the mean of its divisors is an integer number (3865680).

Almost surely, 2^131269404 is an apocalyptic number.

131269404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131269404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185552640).

131269404 is an abundant number, since it is smaller than the sum of its proper divisors (239835876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131269404 is a wasteful number, since it uses less digits than its factorization.

131269404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 131269404 is about 11457.2860660804. The cubic root of 131269404 is about 508.2232211796.

The spelling of 131269404 in words is "one hundred thirty-one million, two hundred sixty-nine thousand, four hundred four".