131534430 has 32 divisors (see below), whose sum is σ = 326570400. Its totient is φ = 33866112.

The previous prime is 131534419. The next prime is 131534461. The reversal of 131534430 is 34435131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131534430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74725 + ... + 76464.

It is an arithmetic number, because the mean of its divisors is an integer number (10205325).

Almost surely, 2^131534430 is an apocalyptic number.

131534430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131534430 is an abundant number, since it is smaller than the sum of its proper divisors (195035970).

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

131534430 is a wasteful number, since it uses less digits than its factorization.

131534430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151228.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 131534430 is about 11468.8460622680. The cubic root of 131534430 is about 508.5650165492.

Adding to 131534430 its reverse (34435131), we get a palindrome (165969561).

The spelling of 131534430 in words is "one hundred thirty-one million, five hundred thirty-four thousand, four hundred thirty".