1124864521 has 9 divisors (see below), whose sum is σ = 1236826983. Its totient is φ = 1022268720.

The previous prime is 1124864497. The next prime is 1124864539. The reversal of 1124864521 is 1254684211.

The square root of 1124864521 is 33539.

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

It can be written as a sum of positive squares in only one way, i.e., 121242121 + 1003622400 = 11011^2 + 31680^2 .

It is not a de Polignac number, because 1124864521 - 2¹⁵ = 1124831753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1124864621) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 367405 + ... + 370453.

Almost surely, 2^1124864521 is an apocalyptic number.

1124864521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1124864521 is the 33539-th square number.

1124864521 is the 16770-th centered octagonal number.

It is an amenable number.

1124864521 is a deficient number, since it is larger than the sum of its proper divisors (111962462).

1124864521 is an frugal number, since it uses more digits than its factorization.

1124864521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120 (or 3060 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The cubic root of 1124864521 is about 1040.0001605646. Note that the first 3 decimals are identical.

The spelling of 1124864521 in words is "one billion, one hundred twenty-four million, eight hundred sixty-four thousand, five hundred twenty-one".