307132109 has 4 divisors (see below), whose sum is σ = 307175100. Its totient is φ = 307089120.

The previous prime is 307132103. The next prime is 307132117. The reversal of 307132109 is 901231703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 901231703 = 569 ⋅1583887.

It can be written as a sum of positive squares in 2 ways, for example, as 207072100 + 100060009 = 14390^2 + 10003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-307132109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307132103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7922 + ... + 26019.

It is an arithmetic number, because the mean of its divisors is an integer number (76793775).

Almost surely, 2^307132109 is an apocalyptic number.

It is an amenable number.

307132109 is a deficient number, since it is larger than the sum of its proper divisors (42991).

307132109 is an equidigital number, since it uses as much as digits as its factorization.

307132109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42990.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 307132109 is about 17525.1849918910. The cubic root of 307132109 is about 674.6964224273.

The spelling of 307132109 in words is "three hundred seven million, one hundred thirty-two thousand, one hundred nine".