1453141321 has 2 divisors, whose sum is σ = 1453141322. Its totient is φ = 1453141320.

The previous prime is 1453141303. The next prime is 1453141381. The reversal of 1453141321 is 1231413541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 920454921 + 532686400 = 30339^2 + 23080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453141321 - 2⁹ = 1453140809 is a prime.

It is a super-2 number, since 2×1453141321² = 4223239397595250082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1453141301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726570660 + 726570661.

It is an arithmetic number, because the mean of its divisors is an integer number (726570661).

Almost surely, 2^1453141321 is an apocalyptic number.

It is an amenable number.

1453141321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1453141321 is an equidigital number, since it uses as much as digits as its factorization.

1453141321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 1453141321 is about 38120.0907790105. The cubic root of 1453141321 is about 1132.6679645681.

Adding to 1453141321 its reverse (1231413541), we get a palindrome (2684554862).

The spelling of 1453141321 in words is "one billion, four hundred fifty-three million, one hundred forty-one thousand, three hundred twenty-one".