312226099 has 4 divisors (see below), whose sum is σ = 312365736. Its totient is φ = 312086464.

The previous prime is 312226087. The next prime is 312226133. The reversal of 312226099 is 990622213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312226099 - 2⁵ = 312226067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312226009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66409 + ... + 70954.

It is an arithmetic number, because the mean of its divisors is an integer number (78091434).

Almost surely, 2^312226099 is an apocalyptic number.

312226099 is a deficient number, since it is larger than the sum of its proper divisors (139637).

312226099 is a wasteful number, since it uses less digits than its factorization.

312226099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139636.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 312226099 is about 17669.9207411918. The cubic root of 312226099 is about 678.4060844096.

The spelling of 312226099 in words is "three hundred twelve million, two hundred twenty-six thousand, ninety-nine".