131440130 has 16 divisors (see below), whose sum is σ = 237280320. Its totient is φ = 52423152.

The previous prime is 131440117. The next prime is 131440139. The reversal of 131440130 is 31044131.

It is a junction number, because it is equal to n+sod(n) for n = 131440099 and 131440108.

It is not an unprimeable number, because it can be changed into a prime (131440139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15470 + ... + 22409.

It is an arithmetic number, because the mean of its divisors is an integer number (14830020).

Almost surely, 2^131440130 is an apocalyptic number.

131440130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131440130 is a deficient number, since it is larger than the sum of its proper divisors (105840190).

131440130 is a wasteful number, since it uses less digits than its factorization.

131440130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38233.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131440130 is about 11464.7341879348. The cubic root of 131440130 is about 508.4434535833.

Adding to 131440130 its reverse (31044131), we get a palindrome (162484261).

The spelling of 131440130 in words is "one hundred thirty-one million, four hundred forty thousand, one hundred thirty".