1124554021 has 2 divisors, whose sum is σ = 1124554022. Its totient is φ = 1124554020.

The previous prime is 1124554009. The next prime is 1124554031. The reversal of 1124554021 is 1204554211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 853457796 + 271096225 = 29214^2 + 16465^2 .

It is a cyclic number.

It is not a de Polignac number, because 1124554021 - 2⁹ = 1124553509 is a prime.

It is a super-2 number, since 2×1124554021² = 2529243492294536882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124554001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562277010 + 562277011.

It is an arithmetic number, because the mean of its divisors is an integer number (562277011).

Almost surely, 2^1124554021 is an apocalyptic number.

It is an amenable number.

1124554021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124554021 is an equidigital number, since it uses as much as digits as its factorization.

1124554021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1124554021 is about 33534.3707410770. The cubic root of 1124554021 is about 1039.9044602200.

The spelling of 1124554021 in words is "one billion, one hundred twenty-four million, five hundred fifty-four thousand, twenty-one".