1352399207329 has 3 divisors (see below), whose sum is σ = 1352400370257. Its totient is φ = 1352398044402.

The previous prime is 1352399207323. The next prime is 1352399207353. The reversal of 1352399207329 is 9237029932531.

The square root of 1352399207329 is 1162927.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1352399207329 - 2³ = 1352399207321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1352399207329.

It is not an unprimeable number, because it can be changed into a prime (1352399207321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 581464 + ... + 1744390.

It is an arithmetic number, because the mean of its divisors is an integer number (450800123419).

Almost surely, 2^{1352399207329} is an apocalyptic number.

1352399207329 is the 1162927-th square number.

1352399207329 is the 581464-th centered octagonal number.

It is an amenable number.

1352399207329 is a deficient number, since it is larger than the sum of its proper divisors (1162928).

1352399207329 is an frugal number, since it uses more digits than its factorization.

1352399207329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325854 (or 1162927 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 55.

The spelling of 1352399207329 in words is "one trillion, three hundred fifty-two billion, three hundred ninety-nine million, two hundred seven thousand, three hundred twenty-nine".