1143462521 has 2 divisors, whose sum is σ = 1143462522. Its totient is φ = 1143462520.

The previous prime is 1143462479. The next prime is 1143462533. The reversal of 1143462521 is 1252643411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 782880400 + 360582121 = 27980^2 + 18989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143462521 - 2²² = 1139268217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143461521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571731260 + 571731261.

It is an arithmetic number, because the mean of its divisors is an integer number (571731261).

Almost surely, 2^1143462521 is an apocalyptic number.

It is an amenable number.

1143462521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143462521 is an equidigital number, since it uses as much as digits as its factorization.

1143462521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 1143462521 is about 33815.1226672328. The cubic root of 1143462521 is about 1045.7004898714.

The spelling of 1143462521 in words is "one billion, one hundred forty-three million, four hundred sixty-two thousand, five hundred twenty-one".