1152450221 has 8 divisors (see below), whose sum is σ = 1241407104. Its totient is φ = 1063537200.

The previous prime is 1152450217. The next prime is 1152450223. The reversal of 1152450221 is 1220542511.

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 1152450221 - 2² = 1152450217 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 (1152450223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61280 + ... + 77846.

It is an arithmetic number, because the mean of its divisors is an integer number (155175888).

Almost surely, 2^1152450221 is an apocalyptic number.

It is an amenable number.

1152450221 is a deficient number, since it is larger than the sum of its proper divisors (88956883).

1152450221 is a wasteful number, since it uses less digits than its factorization.

1152450221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21931.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1152450221 is about 33947.7572307804. The cubic root of 1152450221 is about 1048.4331038797.

Adding to 1152450221 its reverse (1220542511), we get a palindrome (2372992732).

The spelling of 1152450221 in words is "one billion, one hundred fifty-two million, four hundred fifty thousand, two hundred twenty-one".