1368987259 has 8 divisors (see below), whose sum is σ = 1474552640. Its totient is φ = 1266773256.

The previous prime is 1368987227. The next prime is 1368987307. The reversal of 1368987259 is 9527898631.

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

It is a cyclic number.

It is not a de Polignac number, because 1368987259 - 2⁵ = 1368987227 is a prime.

It is a super-2 number, since 2×1368987259² = 3748252230608666162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368987959) 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, 836997 + ... + 838630.

It is an arithmetic number, because the mean of its divisors is an integer number (184319080).

Almost surely, 2^1368987259 is an apocalyptic number.

1368987259 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1368987259 is a deficient number, since it is larger than the sum of its proper divisors (105565381).

1368987259 is a wasteful number, since it uses less digits than its factorization.

1368987259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675689.

The product of its digits is 6531840, while the sum is 58.

The square root of 1368987259 is about 36999.8278239237. The cubic root of 1368987259 is about 1110.3668021859.

The spelling of 1368987259 in words is "one billion, three hundred sixty-eight million, nine hundred eighty-seven thousand, two hundred fifty-nine".