130961236 has 48 divisors (see below), whose sum is σ = 272376832. Its totient is φ = 53969760.

The previous prime is 130961231. The next prime is 130961249. The reversal of 130961236 is 632169031.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 130961198 and 130961207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130961231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834070 + ... + 834226.

Almost surely, 2^130961236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130961236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136188416).

130961236 is an abundant number, since it is smaller than the sum of its proper divisors (141415596).

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

130961236 is an equidigital number, since it uses as much as digits as its factorization.

130961236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 130961236 is about 11443.8296037646. The cubic root of 130961236 is about 507.8252080152.

The spelling of 130961236 in words is "one hundred thirty million, nine hundred sixty-one thousand, two hundred thirty-six".