312513099 has 4 divisors (see below), whose sum is σ = 416684136. Its totient is φ = 208342064.

The previous prime is 312513079. The next prime is 312513101. The reversal of 312513099 is 990315213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990315213 = 3 ⋅330105071.

It is a cyclic number.

It is not a de Polignac number, because 312513099 - 2¹⁵ = 312480331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312513049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52085514 + ... + 52085519.

It is an arithmetic number, because the mean of its divisors is an integer number (104171034).

Almost surely, 2^312513099 is an apocalyptic number.

312513099 is a deficient number, since it is larger than the sum of its proper divisors (104171037).

312513099 is a wasteful number, since it uses less digits than its factorization.

312513099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104171036.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 312513099 is about 17678.0400214503. The cubic root of 312513099 is about 678.6138856579.

The spelling of 312513099 in words is "three hundred twelve million, five hundred thirteen thousand, ninety-nine".