1934159309 has 16 divisors (see below), whose sum is σ = 2166279552. Its totient is φ = 1717360128.

The previous prime is 1934159281. The next prime is 1934159317. The reversal of 1934159309 is 9039514391.

It is not a de Polignac number, because 1934159309 - 2¹² = 1934155213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1934159309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1934159389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5339 + ... + 62424.

It is an arithmetic number, because the mean of its divisors is an integer number (135392472).

Almost surely, 2^1934159309 is an apocalyptic number.

It is an amenable number.

1934159309 is a deficient number, since it is larger than the sum of its proper divisors (232120243).

1934159309 is a wasteful number, since it uses less digits than its factorization.

1934159309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67876.

The product of its (nonzero) digits is 131220, while the sum is 44.

The square root of 1934159309 is about 43979.0780826520. The cubic root of 1934159309 is about 1245.9408186256.

The spelling of 1934159309 in words is "one billion, nine hundred thirty-four million, one hundred fifty-nine thousand, three hundred nine".