922152321 has 12 divisors (see below), whose sum is σ = 1345187220. Its totient is φ = 608680800.

The previous prime is 922152313. The next prime is 922152323. The reversal of 922152321 is 123251229.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 648415296 + 273737025 = 25464^2 + 16545^2 .

It is not a de Polignac number, because 922152321 - 2³ = 922152313 is a prime.

It is a super-3 number, since 3×922152321³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (922152323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 506326 + ... + 508143.

It is an arithmetic number, because the mean of its divisors is an integer number (112098935).

Almost surely, 2^922152321 is an apocalyptic number.

It is an amenable number.

922152321 is a deficient number, since it is larger than the sum of its proper divisors (423034899).

922152321 is a wasteful number, since it uses less digits than its factorization.

922152321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014576 (or 1014573 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 922152321 is about 30366.9610102822. The cubic root of 922152321 is about 973.3466860176.

The spelling of 922152321 in words is "nine hundred twenty-two million, one hundred fifty-two thousand, three hundred twenty-one".