1368501249 has 4 divisors (see below), whose sum is σ = 1824668336. Its totient is φ = 912334164.

The previous prime is 1368501229. The next prime is 1368501257. The reversal of 1368501249 is 9421058631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1368501249 - 2⁹ = 1368500737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368501229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228083539 + ... + 228083544.

It is an arithmetic number, because the mean of its divisors is an integer number (456167084).

Almost surely, 2^1368501249 is an apocalyptic number.

It is an amenable number.

1368501249 is a deficient number, since it is larger than the sum of its proper divisors (456167087).

1368501249 is an equidigital number, since it uses as much as digits as its factorization.

1368501249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456167086.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1368501249 is about 36993.2595076454. The cubic root of 1368501249 is about 1110.2353879501.

The spelling of 1368501249 in words is "one billion, three hundred sixty-eight million, five hundred one thousand, two hundred forty-nine".