1321839164 has 12 divisors (see below), whose sum is σ = 2413793424. Its totient is φ = 632183904.

The previous prime is 1321839149. The next prime is 1321839179. The reversal of 1321839164 is 4619381231.

It is an interprime number because it is at equal distance from previous prime (1321839149) and next prime (1321839179).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7183817 + ... + 7184000.

It is an arithmetic number, because the mean of its divisors is an integer number (201149452).

Almost surely, 2^1321839164 is an apocalyptic number.

It is an amenable number.

1321839164 is a deficient number, since it is larger than the sum of its proper divisors (1091954260).

1321839164 is a wasteful number, since it uses less digits than its factorization.

1321839164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14367844 (or 14367842 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 1321839164 is about 36357.1061004585. The cubic root of 1321839164 is about 1097.4705416688.

The spelling of 1321839164 in words is "one billion, three hundred twenty-one million, eight hundred thirty-nine thousand, one hundred sixty-four".