309164041 has 4 divisors (see below), whose sum is σ = 319824900. Its totient is φ = 298503184.

The previous prime is 309164039. The next prime is 309164059. The reversal of 309164041 is 140461903.

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

It can be written as a sum of positive squares in 2 ways, for example, as 205205625 + 103958416 = 14325^2 + 10196^2 .

It is a cyclic number.

It is not a de Polignac number, because 309164041 - 2¹ = 309164039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (309164021) 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, 5330386 + ... + 5330443.

It is an arithmetic number, because the mean of its divisors is an integer number (79956225).

Almost surely, 2^309164041 is an apocalyptic number.

It is an amenable number.

309164041 is a deficient number, since it is larger than the sum of its proper divisors (10660859).

309164041 is a wasteful number, since it uses less digits than its factorization.

309164041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10660858.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 309164041 is about 17583.0611953664. The cubic root of 309164041 is about 676.1810441703.

The spelling of 309164041 in words is "three hundred nine million, one hundred sixty-four thousand, forty-one".