1142003893 has 2 divisors, whose sum is σ = 1142003894. Its totient is φ = 1142003892.

The previous prime is 1142003881. The next prime is 1142003909. The reversal of 1142003893 is 3983002411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 648364369 + 493639524 = 25463^2 + 22218^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142003893 - 2¹⁷ = 1141872821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142003813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571001946 + 571001947.

It is an arithmetic number, because the mean of its divisors is an integer number (571001947).

Almost surely, 2^1142003893 is an apocalyptic number.

It is an amenable number.

1142003893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142003893 is an equidigital number, since it uses as much as digits as its factorization.

1142003893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1142003893 is about 33793.5480972330. The cubic root of 1142003893 is about 1045.2556605305.

The spelling of 1142003893 in words is "one billion, one hundred forty-two million, three thousand, eight hundred ninety-three".