1152221543 has 8 divisors (see below), whose sum is σ = 1257950736. Its totient is φ = 1046656000.

The previous prime is 1152221527. The next prime is 1152221549. The reversal of 1152221543 is 3451222511.

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 1152221543 - 2⁴ = 1152221527 is a prime.

It is a super-4 number, since 4×1152221543⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152221549) 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, 25946 + ... + 54567.

It is an arithmetic number, because the mean of its divisors is an integer number (157243842).

Almost surely, 2^1152221543 is an apocalyptic number.

1152221543 is a deficient number, since it is larger than the sum of its proper divisors (105729193).

1152221543 is a wasteful number, since it uses less digits than its factorization.

1152221543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81825.

The product of its digits is 2400, while the sum is 26.

The square root of 1152221543 is about 33944.3889766777. The cubic root of 1152221543 is about 1048.3637532502.

The spelling of 1152221543 in words is "one billion, one hundred fifty-two million, two hundred twenty-one thousand, five hundred forty-three".