1230142453 has 2 divisors, whose sum is σ = 1230142454. Its totient is φ = 1230142452.

The previous prime is 1230142439. The next prime is 1230142469. The reversal of 1230142453 is 3542410321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1220943364 + 9199089 = 34942^2 + 3033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230142453 - 2²⁵ = 1196588021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230142483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615071226 + 615071227.

It is an arithmetic number, because the mean of its divisors is an integer number (615071227).

Almost surely, 2^1230142453 is an apocalyptic number.

It is an amenable number.

1230142453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230142453 is an equidigital number, since it uses as much as digits as its factorization.

1230142453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1230142453 is about 35073.3866770804. The cubic root of 1230142453 is about 1071.4826312440.

Adding to 1230142453 its reverse (3542410321), we get a palindrome (4772552774).

The spelling of 1230142453 in words is "one billion, two hundred thirty million, one hundred forty-two thousand, four hundred fifty-three".