131430234 has 64 divisors (see below), whose sum is σ = 300480768. Its totient is φ = 38016000.

The previous prime is 131430217. The next prime is 131430287. The reversal of 131430234 is 432034131.

It is a self number, because there is not a number n which added to its sum of digits gives 131430234.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108834 + ... + 110034.

It is an arithmetic number, because the mean of its divisors is an integer number (4695012).

Almost surely, 2^131430234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131430234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150240384).

131430234 is an abundant number, since it is smaller than the sum of its proper divisors (169050534).

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

131430234 is a wasteful number, since it uses less digits than its factorization.

131430234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 131430234 is about 11464.3025954482. The cubic root of 131430234 is about 508.4306931914.

Adding to 131430234 its reverse (432034131), we get a palindrome (563464365).

The spelling of 131430234 in words is "one hundred thirty-one million, four hundred thirty thousand, two hundred thirty-four".