1313209499 has 8 divisors (see below), whose sum is σ = 1514093280. Its totient is φ = 1115646336.

The previous prime is 1313209493. The next prime is 1313209501. The reversal of 1313209499 is 9949023131.

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

It is not a de Polignac number, because 1313209499 - 2⁸ = 1313209243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313209493) 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, 829304 + ... + 830885.

It is an arithmetic number, because the mean of its divisors is an integer number (189261660).

Almost surely, 2^1313209499 is an apocalyptic number.

1313209499 is a deficient number, since it is larger than the sum of its proper divisors (200883781).

1313209499 is a wasteful number, since it uses less digits than its factorization.

1313209499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660309.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 1313209499 is about 36238.2325589977. The cubic root of 1313209499 is about 1095.0770360653.

The spelling of 1313209499 in words is "one billion, three hundred thirteen million, two hundred nine thousand, four hundred ninety-nine".