130436261 has 8 divisors (see below), whose sum is σ = 131519520. Its totient is φ = 129357648.

The previous prime is 130436237. The next prime is 130436263. The reversal of 130436261 is 162634031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130436261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130436261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130436263) 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, 73790 + ... + 75536.

It is an arithmetic number, because the mean of its divisors is an integer number (16439940).

Almost surely, 2^130436261 is an apocalyptic number.

It is an amenable number.

130436261 is a deficient number, since it is larger than the sum of its proper divisors (1083259).

130436261 is a wasteful number, since it uses less digits than its factorization.

130436261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 130436261 is about 11420.8695378242. The cubic root of 130436261 is about 507.1457383500.

The spelling of 130436261 in words is "one hundred thirty million, four hundred thirty-six thousand, two hundred sixty-one".