131469534 has 128 divisors (see below), whose sum is σ = 362880000. Its totient is φ = 34421760.

The previous prime is 131469529. The next prime is 131469539. The reversal of 131469534 is 435964131.

It is an interprime number because it is at equal distance from previous prime (131469529) and next prime (131469539).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131469539) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 263217 + ... + 263715.

It is an arithmetic number, because the mean of its divisors is an integer number (2835000).

Almost surely, 2^131469534 is an apocalyptic number.

131469534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131469534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181440000).

131469534 is an abundant number, since it is smaller than the sum of its proper divisors (231410466).

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

131469534 is a wasteful number, since it uses less digits than its factorization.

131469534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 569 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 131469534 is about 11466.0164835046. The cubic root of 131469534 is about 508.4813647768.

The spelling of 131469534 in words is "one hundred thirty-one million, four hundred sixty-nine thousand, five hundred thirty-four".