130404645 has 96 divisors (see below), whose sum is σ = 269298432. Its totient is φ = 57148416.

The previous prime is 130404643. The next prime is 130404647. The reversal of 130404645 is 546404031.

130404645 is a `hidden beast` number, since 13 + 0 + 4 + 0 + 4 + 645 = 666.

It is an interprime number because it is at equal distance from previous prime (130404643) and next prime (130404647).

It is not a de Polignac number, because 130404645 - 2¹ = 130404643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130404643) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1218682 + ... + 1218788.

It is an arithmetic number, because the mean of its divisors is an integer number (2805192).

Almost surely, 2^130404645 is an apocalyptic number.

130404645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130404645 is an abundant number, since it is smaller than the sum of its proper divisors (138893787).

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

130404645 is a wasteful number, since it uses less digits than its factorization.

130404645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 130404645 is about 11419.4853211517. The cubic root of 130404645 is about 507.1047599309.

Adding to 130404645 its reverse (546404031), we get a palindrome (676808676).

The spelling of 130404645 in words is "one hundred thirty million, four hundred four thousand, six hundred forty-five".