1329954139 has 6 divisors (see below), whose sum is σ = 1390292876. Its totient is φ = 1272129540.

The previous prime is 1329954133. The next prime is 1329954151. The reversal of 1329954139 is 9314599231.

It is not a de Polignac number, because 1329954139 - 2⁵ = 1329954107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1329954133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1256517 + ... + 1257574.

Almost surely, 2^1329954139 is an apocalyptic number.

1329954139 is a deficient number, since it is larger than the sum of its proper divisors (60338737).

1329954139 is an equidigital number, since it uses as much as digits as its factorization.

1329954139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514137 (or 2514114 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The square root of 1329954139 is about 36468.5362881484. The cubic root of 1329954139 is about 1099.7118085247.

The spelling of 1329954139 in words is "one billion, three hundred twenty-nine million, nine hundred fifty-four thousand, one hundred thirty-nine".