130406251 has 16 divisors (see below), whose sum is σ = 139487040. Its totient is φ = 121651200.

The previous prime is 130406249. The next prime is 130406257. The reversal of 130406251 is 152604031.

It is a cyclic number.

It is not a de Polignac number, because 130406251 - 2¹ = 130406249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130406257) 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, 169195 + ... + 169963.

It is an arithmetic number, because the mean of its divisors is an integer number (8717940).

Almost surely, 2^130406251 is an apocalyptic number.

130406251 is a deficient number, since it is larger than the sum of its proper divisors (9080789).

130406251 is a wasteful number, since it uses less digits than its factorization.

130406251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 130406251 is about 11419.5556393408. Note that the first 3 decimals coincide. The cubic root of 130406251 is about 507.1068416740.

It can be divided in two parts, 13040 and 6251, that added together give a palindrome (19291).

The spelling of 130406251 in words is "one hundred thirty million, four hundred six thousand, two hundred fifty-one".