1142532973 has 2 divisors, whose sum is σ = 1142532974. Its totient is φ = 1142532972.

The previous prime is 1142532913. The next prime is 1142533013. The reversal of 1142532973 is 3792352411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 591316489 + 551216484 = 24317^2 + 23478^2 .

It is an emirp because it is prime and its reverse (3792352411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142532973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142532913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571266486 + 571266487.

It is an arithmetic number, because the mean of its divisors is an integer number (571266487).

Almost surely, 2^1142532973 is an apocalyptic number.

It is an amenable number.

1142532973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142532973 is an equidigital number, since it uses as much as digits as its factorization.

1142532973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 1142532973 is about 33801.3753122562. The cubic root of 1142532973 is about 1045.4170547507.

The spelling of 1142532973 in words is "one billion, one hundred forty-two million, five hundred thirty-two thousand, nine hundred seventy-three".