1356264729 has 10 divisors (see below), whose sum is σ = 2026025210. Its totient is φ = 904176432.

The previous prime is 1356264727. The next prime is 1356264733. The reversal of 1356264729 is 9274626531.

1356264729 is a `hidden beast` number, since 1 + 3 + 562 + 64 + 7 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1345055625 + 11209104 = 36675^2 + 3348^2 .

It is not a de Polignac number, because 1356264729 - 2¹ = 1356264727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356264727) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8371924 + ... + 8372085.

It is an arithmetic number, because the mean of its divisors is an integer number (202602521).

Almost surely, 2^1356264729 is an apocalyptic number.

It is an amenable number.

1356264729 is a deficient number, since it is larger than the sum of its proper divisors (669760481).

1356264729 is an equidigital number, since it uses as much as digits as its factorization.

1356264729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16744021 (or 16744012 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 1356264729 is about 36827.4996300319. The cubic root of 1356264729 is about 1106.9164014689.

It can be divided in two parts, 1356 and 264729, that added together give a triangular number (266085 = T₇₂₉).

The spelling of 1356264729 in words is "one billion, three hundred fifty-six million, two hundred sixty-four thousand, seven hundred twenty-nine".