1455451121 has 2 divisors, whose sum is σ = 1455451122. Its totient is φ = 1455451120.

The previous prime is 1455451097. The next prime is 1455451139. The reversal of 1455451121 is 1211545541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1410828721 + 44622400 = 37561^2 + 6680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1455451121 - 2¹⁴ = 1455434737 is a prime.

It is not a weakly prime, because it can be changed into another prime (1455451321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727725560 + 727725561.

It is an arithmetic number, because the mean of its divisors is an integer number (727725561).

Almost surely, 2^1455451121 is an apocalyptic number.

It is an amenable number.

1455451121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1455451121 is an equidigital number, since it uses as much as digits as its factorization.

1455451121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000, while the sum is 29.

The square root of 1455451121 is about 38150.3751095582. The cubic root of 1455451121 is about 1133.2677803972.

Adding to 1455451121 its reverse (1211545541), we get a palindrome (2666996662).

The spelling of 1455451121 in words is "one billion, four hundred fifty-five million, four hundred fifty-one thousand, one hundred twenty-one".