1356163421 has 8 divisors (see below), whose sum is σ = 1415730624. Its totient is φ = 1296646560.

The previous prime is 1356163379. The next prime is 1356163429. The reversal of 1356163421 is 1243616531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1356163421 - 2⁶ = 1356163357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356163429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48926 + ... + 71456.

It is an arithmetic number, because the mean of its divisors is an integer number (176966328).

Almost surely, 2^1356163421 is an apocalyptic number.

It is an amenable number.

1356163421 is a deficient number, since it is larger than the sum of its proper divisors (59567203).

1356163421 is a wasteful number, since it uses less digits than its factorization.

1356163421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25171.

The product of its digits is 12960, while the sum is 32.

The square root of 1356163421 is about 36826.1241647828. The cubic root of 1356163421 is about 1106.8888399178. Note that the first 4 decimals are identical.

Adding to 1356163421 its reverse (1243616531), we get a palindrome (2599779952).

The spelling of 1356163421 in words is "one billion, three hundred fifty-six million, one hundred sixty-three thousand, four hundred twenty-one".