1453225121 has 2 divisors, whose sum is σ = 1453225122. Its totient is φ = 1453225120.

The previous prime is 1453225117. The next prime is 1453225129. The reversal of 1453225121 is 1215223541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1356890896 + 96334225 = 36836^2 + 9815^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453225121 - 2² = 1453225117 is a prime.

It is a super-2 number, since 2×1453225121² = 4223726504610929282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1453225129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726612560 + 726612561.

It is an arithmetic number, because the mean of its divisors is an integer number (726612561).

Almost surely, 2^1453225121 is an apocalyptic number.

It is an amenable number.

1453225121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1453225121 is an equidigital number, since it uses as much as digits as its factorization.

1453225121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 1453225121 is about 38121.1899210924. The cubic root of 1453225121 is about 1132.6897371123.

Adding to 1453225121 its reverse (1215223541), we get a palindrome (2668448662).

The spelling of 1453225121 in words is "one billion, four hundred fifty-three million, two hundred twenty-five thousand, one hundred twenty-one".