23214656149281 has 15 divisors (see below), whose sum is σ = 34678748654913. Its totient is φ = 15476408523900.

The previous prime is 23214656149261. The next prime is 23214656149291. The reversal of 23214656149281 is 18294165641232.

The square root of 23214656149281 is 4818159.

It is a perfect power (a square), and thus also a powerful number.

23214656149281 is a `hidden beast` number, since 2 + 3 + 2 + 1 + 465 + 6 + 14 + 92 + 81 = 666.

It is not a de Polignac number, because 23214656149281 - 2²¹ = 23214654052129 is a prime.

It is a super-2 number, since 2×23214656149281² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23214656149261) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 43095756 + ... + 43631106.

Almost surely, 2^{23214656149281} is an apocalyptic number.

23214656149281 is the 4818159-th square number.

23214656149281 is the 2409080-th centered octagonal number.

It is an amenable number.

23214656149281 is a deficient number, since it is larger than the sum of its proper divisors (11464092505632).

23214656149281 is an frugal number, since it uses more digits than its factorization.

23214656149281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070714 (or 535354 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 23214656149281 in words is "twenty-three trillion, two hundred fourteen billion, six hundred fifty-six million, one hundred forty-nine thousand, two hundred eighty-one".