1329137674 has 4 divisors (see below), whose sum is σ = 1993706514. Its totient is φ = 664568836.

The previous prime is 1329137671. The next prime is 1329137683. The reversal of 1329137674 is 4767319231.

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

It can be written as a sum of positive squares in only one way, i.e., 1324450449 + 4687225 = 36393^2 + 2165^2 .

It is a super-2 number, since 2×1329137674² = 3533213912892260552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1329137674.

It is not an unprimeable number, because it can be changed into a prime (1329137671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332284417 + ... + 332284420.

Almost surely, 2^1329137674 is an apocalyptic number.

1329137674 is a deficient number, since it is larger than the sum of its proper divisors (664568840).

1329137674 is an equidigital number, since it uses as much as digits as its factorization.

1329137674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664568839.

The product of its digits is 190512, while the sum is 43.

The square root of 1329137674 is about 36457.3404680045. The cubic root of 1329137674 is about 1099.4867230688.

The spelling of 1329137674 in words is "one billion, three hundred twenty-nine million, one hundred thirty-seven thousand, six hundred seventy-four".