1356476729 has 16 divisors (see below), whose sum is σ = 1428330240. Its totient is φ = 1287043200.

The previous prime is 1356476663. The next prime is 1356476741. The reversal of 1356476729 is 9276746531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1356476729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356476749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199079 + ... + 205779.

It is an arithmetic number, because the mean of its divisors is an integer number (89270640).

Almost surely, 2^1356476729 is an apocalyptic number.

It is an amenable number.

1356476729 is a deficient number, since it is larger than the sum of its proper divisors (71853511).

1356476729 is an equidigital number, since it uses as much as digits as its factorization.

1356476729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880.

The product of its digits is 1905120, while the sum is 50.

The square root of 1356476729 is about 36830.3778014834. The cubic root of 1356476729 is about 1106.9740731132.

The spelling of 1356476729 in words is "one billion, three hundred fifty-six million, four hundred seventy-six thousand, seven hundred twenty-nine".