130213665 has 12 divisors (see below), whose sum is σ = 225703764. Its totient is φ = 69447264.

The previous prime is 130213661. The next prime is 130213679. The reversal of 130213665 is 566312031.

It can be written as a sum of positive squares in 2 ways, for example, as 14930496 + 115283169 = 3864^2 + 10737^2 .

It is not a de Polignac number, because 130213665 - 2² = 130213661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130213661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1446774 + ... + 1446863.

It is an arithmetic number, because the mean of its divisors is an integer number (18808647).

Almost surely, 2^130213665 is an apocalyptic number.

130213665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130213665 is a deficient number, since it is larger than the sum of its proper divisors (95490099).

130213665 is a wasteful number, since it uses less digits than its factorization.

130213665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893648 (or 2893645 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 130213665 is about 11411.1202342277. The cubic root of 130213665 is about 506.8570842351.

Adding to 130213665 its reverse (566312031), we get a palindrome (696525696).

The spelling of 130213665 in words is "one hundred thirty million, two hundred thirteen thousand, six hundred sixty-five".