1044357121 has 2 divisors, whose sum is σ = 1044357122. Its totient is φ = 1044357120.

The previous prime is 1044357101. The next prime is 1044357131. The reversal of 1044357121 is 1217534401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 914397121 + 129960000 = 30239^2 + 11400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044357121 - 2⁷ = 1044356993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1044357121.

It is not a weakly prime, because it can be changed into another prime (1044357101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522178560 + 522178561.

It is an arithmetic number, because the mean of its divisors is an integer number (522178561).

Almost surely, 2^1044357121 is an apocalyptic number.

It is an amenable number.

1044357121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044357121 is an equidigital number, since it uses as much as digits as its factorization.

1044357121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1044357121 is about 32316.5146790306. The cubic root of 1044357121 is about 1014.5723229147.

It can be divided in two parts, 104435 and 7121, that added together give a square (111556 = 334²).

The spelling of 1044357121 in words is "one billion, forty-four million, three hundred fifty-seven thousand, one hundred twenty-one".