1353407999 has 4 divisors (see below), whose sum is σ = 1354130160. Its totient is φ = 1352685840.

The previous prime is 1353407977. The next prime is 1353408031. The reversal of 1353407999 is 9997043531.

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

It is a cyclic number.

It is not a de Polignac number, because 1353407999 - 2²⁸ = 1084972543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353407969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358262 + ... + 362019.

It is an arithmetic number, because the mean of its divisors is an integer number (338532540).

Almost surely, 2^1353407999 is an apocalyptic number.

1353407999 is a deficient number, since it is larger than the sum of its proper divisors (722161).

1353407999 is an equidigital number, since it uses as much as digits as its factorization.

1353407999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722160.

The product of its (nonzero) digits is 918540, while the sum is 50.

The square root of 1353407999 is about 36788.6939017954. The cubic root of 1353407999 is about 1106.1386811114.

The spelling of 1353407999 in words is "one billion, three hundred fifty-three million, four hundred seven thousand, nine hundred ninety-nine".