1143612629 has 2 divisors, whose sum is σ = 1143612630. Its totient is φ = 1143612628.

The previous prime is 1143612571. The next prime is 1143612677. The reversal of 1143612629 is 9262163411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1143454225 + 158404 = 33815^2 + 398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143612629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143614629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571806314 + 571806315.

It is an arithmetic number, because the mean of its divisors is an integer number (571806315).

Almost surely, 2^1143612629 is an apocalyptic number.

It is an amenable number.

1143612629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143612629 is an equidigital number, since it uses as much as digits as its factorization.

1143612629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 1143612629 is about 33817.3421338815. The cubic root of 1143612629 is about 1045.7462459669.

The spelling of 1143612629 in words is "one billion, one hundred forty-three million, six hundred twelve thousand, six hundred twenty-nine".