1152163621 has 8 divisors (see below), whose sum is σ = 1317680000. Its totient is φ = 986877648.

The previous prime is 1152163613. The next prime is 1152163643. The reversal of 1152163621 is 1263612511.

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 1152163621 - 2³ = 1152163613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1152163621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152163721) 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, 46746 + ... + 67003.

It is an arithmetic number, because the mean of its divisors is an integer number (164710000).

Almost surely, 2^1152163621 is an apocalyptic number.

It is an amenable number.

1152163621 is a deficient number, since it is larger than the sum of its proper divisors (165516379).

1152163621 is a wasteful number, since it uses less digits than its factorization.

1152163621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115203.

The product of its digits is 2160, while the sum is 28.

The square root of 1152163621 is about 33943.5357763448. The cubic root of 1152163621 is about 1048.3461859275.

The spelling of 1152163621 in words is "one billion, one hundred fifty-two million, one hundred sixty-three thousand, six hundred twenty-one".