309174039 has 12 divisors (see below), whose sum is σ = 450759816. Its totient is φ = 204189072.

The previous prime is 309174011. The next prime is 309174059. The reversal of 309174039 is 930471903.

It is not a de Polignac number, because 309174039 - 2¹¹ = 309171991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 309173994 and 309174012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309174059) 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 11 ways as a sum of consecutive naturals, for example, 159564 + ... + 161489.

It is an arithmetic number, because the mean of its divisors is an integer number (37563318).

Almost surely, 2^309174039 is an apocalyptic number.

309174039 is a deficient number, since it is larger than the sum of its proper divisors (141585777).

309174039 is a wasteful number, since it uses less digits than its factorization.

309174039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321166 (or 321163 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 309174039 is about 17583.3455007857. The cubic root of 309174039 is about 676.1883330572.

The spelling of 309174039 in words is "three hundred nine million, one hundred seventy-four thousand, thirty-nine".