1331921059 has 8 divisors (see below), whose sum is σ = 1523235168. Its totient is φ = 1140866880.

The previous prime is 1331921051. The next prime is 1331921069. The reversal of 1331921059 is 9501291331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1331921059 - 2³ = 1331921051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331921051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53872 + ... + 74605.

It is an arithmetic number, because the mean of its divisors is an integer number (190404396).

Almost surely, 2^1331921059 is an apocalyptic number.

1331921059 is a deficient number, since it is larger than the sum of its proper divisors (191314109).

1331921059 is a wasteful number, since it uses less digits than its factorization.

1331921059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129965.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 1331921059 is about 36495.4936807272. The cubic root of 1331921059 is about 1100.2536767555.

The spelling of 1331921059 in words is "one billion, three hundred thirty-one million, nine hundred twenty-one thousand, fifty-nine".