130921115 has 32 divisors (see below), whose sum is σ = 179262720. Its totient is φ = 90993024.

The previous prime is 130921103. The next prime is 130921117. The reversal of 130921115 is 511129031.

It is a cyclic number.

It is not a de Polignac number, because 130921115 - 2¹² = 130917019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130921117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280112 + ... + 280578.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^130921115 is an apocalyptic number.

130921115 is a deficient number, since it is larger than the sum of its proper divisors (48341605).

130921115 is a wasteful number, since it uses less digits than its factorization.

130921115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 130921115 is about 11442.0765160875. The cubic root of 130921115 is about 507.7733439757.

The spelling of 130921115 in words is "one hundred thirty million, nine hundred twenty-one thousand, one hundred fifteen".