1368756143 has 4 divisors (see below), whose sum is σ = 1440795960. Its totient is φ = 1296716328.

The previous prime is 1368756131. The next prime is 1368756203. The reversal of 1368756143 is 3416578631.

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 1368756143 - 2⁴ = 1368756127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1368756094 and 1368756103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368750143) 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, 36019880 + ... + 36019917.

It is an arithmetic number, because the mean of its divisors is an integer number (360198990).

Almost surely, 2^1368756143 is an apocalyptic number.

1368756143 is a deficient number, since it is larger than the sum of its proper divisors (72039817).

1368756143 is an equidigital number, since it uses as much as digits as its factorization.

1368756143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72039816.

The product of its digits is 362880, while the sum is 44.

The square root of 1368756143 is about 36996.7044883730. The cubic root of 1368756143 is about 1110.3043136626.

The spelling of 1368756143 in words is "one billion, three hundred sixty-eight million, seven hundred fifty-six thousand, one hundred forty-three".