131630830 has 48 divisors (see below), whose sum is σ = 258705216. Its totient is φ = 48176640.

The previous prime is 131630819. The next prime is 131630831. The reversal of 131630830 is 38036131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131630795 and 131630804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131630831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106315 + ... + 107545.

It is an arithmetic number, because the mean of its divisors is an integer number (5389692).

Almost surely, 2^131630830 is an apocalyptic number.

131630830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131630830 is a deficient number, since it is larger than the sum of its proper divisors (127074386).

131630830 is a wasteful number, since it uses less digits than its factorization.

131630830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 131630830 is about 11473.0479821188. The cubic root of 131630830 is about 508.6892266025.

Adding to 131630830 its reverse (38036131), we get a palindrome (169666961).

The spelling of 131630830 in words is "one hundred thirty-one million, six hundred thirty thousand, eight hundred thirty".