1457022121 has 2 divisors, whose sum is σ = 1457022122. Its totient is φ = 1457022120.

The previous prime is 1457022097. The next prime is 1457022181. The reversal of 1457022121 is 1212207541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1283072400 + 173949721 = 35820^2 + 13189^2 .

It is an emirp because it is prime and its reverse (1212207541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1457022121 - 2⁹ = 1457021609 is a prime.

It is a super-2 number, since 2×1457022121² = 4245826922166677282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1457022181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728511060 + 728511061.

It is an arithmetic number, because the mean of its divisors is an integer number (728511061).

Almost surely, 2^1457022121 is an apocalyptic number.

It is an amenable number.

1457022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457022121 is an equidigital number, since it uses as much as digits as its factorization.

1457022121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1457022121 is about 38170.9591312558. The cubic root of 1457022121 is about 1133.6753799087.

Adding to 1457022121 its reverse (1212207541), we get a palindrome (2669229662).

The spelling of 1457022121 in words is "one billion, four hundred fifty-seven million, twenty-two thousand, one hundred twenty-one".