1368429591 has 4 divisors (see below), whose sum is σ = 1824572792. Its totient is φ = 912286392.

The previous prime is 1368429589. The next prime is 1368429593. The reversal of 1368429591 is 1959248631.

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

It is an interprime number because it is at equal distance from previous prime (1368429589) and next prime (1368429593).

It is not a de Polignac number, because 1368429591 - 2¹ = 1368429589 is a prime.

It is a super-3 number, since 3×1368429591³ (a number of 28 digits) contains 333 as substring.

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 1368429591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368429593) 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, 228071596 + ... + 228071601.

It is an arithmetic number, because the mean of its divisors is an integer number (456143198).

Almost surely, 2^1368429591 is an apocalyptic number.

1368429591 is a deficient number, since it is larger than the sum of its proper divisors (456143201).

1368429591 is an equidigital number, since it uses as much as digits as its factorization.

1368429591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456143200.

The product of its digits is 466560, while the sum is 48.

The square root of 1368429591 is about 36992.2909671731. The cubic root of 1368429591 is about 1110.2160094180.

The spelling of 1368429591 in words is "one billion, three hundred sixty-eight million, four hundred twenty-nine thousand, five hundred ninety-one".