1356397329 has 16 divisors (see below), whose sum is σ = 2067406848. Its totient is φ = 774890832.

The previous prime is 1356397313. The next prime is 1356397349. The reversal of 1356397329 is 9237936531.

It is not a de Polignac number, because 1356397329 - 2⁴ = 1356397313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1356397349) 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, 152914 + ... + 161540.

It is an arithmetic number, because the mean of its divisors is an integer number (129212928).

Almost surely, 2^1356397329 is an apocalyptic number.

It is an amenable number.

1356397329 is a deficient number, since it is larger than the sum of its proper divisors (711009519).

1356397329 is an equidigital number, since it uses as much as digits as its factorization.

1356397329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16124.

The product of its digits is 918540, while the sum is 48.

The square root of 1356397329 is about 36829.2998711624. The cubic root of 1356397329 is about 1106.9524741541.

The spelling of 1356397329 in words is "one billion, three hundred fifty-six million, three hundred ninety-seven thousand, three hundred twenty-nine".