903243052881 has 45 divisors (see below), whose sum is σ = 1461244315179. Its totient is φ = 555773450544.

The previous prime is 903243052867. The next prime is 903243052891. The reversal of 903243052881 is 188250342309.

The square root of 903243052881 is 950391.

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

903243052881 is a `hidden beast` number, since 9 + 0 + 3 + 2 + 43 + 0 + 528 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 133615836225 + 769627216656 = 365535^2 + 877284^2 .

It is not a de Polignac number, because 903243052881 - 2¹⁹ = 903242528593 is a prime.

It is a super-2 number, since 2×903243052881² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (903243052891) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 111191686 + ... + 111199808.

Almost surely, 2^903243052881 is an apocalyptic number.

903243052881 is the 950391-st square number.

903243052881 is the 475196-th centered octagonal number.

It is an amenable number.

903243052881 is a deficient number, since it is larger than the sum of its proper divisors (558001262298).

903243052881 is an frugal number, since it uses more digits than its factorization.

903243052881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16284 (or 8139 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 903243052881 in words is "nine hundred three billion, two hundred forty-three million, fifty-two thousand, eight hundred eighty-one".