1143166597 has 4 divisors (see below), whose sum is σ = 1203333280. Its totient is φ = 1082999916.

The previous prime is 1143166579. The next prime is 1143166613. The reversal of 1143166597 is 7956613411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1143166597 - 2¹⁵ = 1143133829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143166517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30083313 + ... + 30083350.

It is an arithmetic number, because the mean of its divisors is an integer number (300833320).

Almost surely, 2^1143166597 is an apocalyptic number.

It is an amenable number.

1143166597 is a deficient number, since it is larger than the sum of its proper divisors (60166683).

1143166597 is an equidigital number, since it uses as much as digits as its factorization.

1143166597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60166682.

The product of its digits is 136080, while the sum is 43.

The square root of 1143166597 is about 33810.7467678547. The cubic root of 1143166597 is about 1045.6102742428.

The spelling of 1143166597 in words is "one billion, one hundred forty-three million, one hundred sixty-six thousand, five hundred ninety-seven".