1159897673 has 4 divisors (see below), whose sum is σ = 1265342928. Its totient is φ = 1054452420.

The previous prime is 1159897663. The next prime is 1159897679. The reversal of 1159897673 is 3767989511.

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 1159897673 - 2¹² = 1159893577 is a prime.

It is a super-2 number, since 2×1159897673² = 2690725223661629858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1159897679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52722611 + ... + 52722632.

It is an arithmetic number, because the mean of its divisors is an integer number (316335732).

Almost surely, 2^1159897673 is an apocalyptic number.

It is an amenable number.

1159897673 is a deficient number, since it is larger than the sum of its proper divisors (105445255).

1159897673 is a wasteful number, since it uses less digits than its factorization.

1159897673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105445254.

The product of its digits is 2857680, while the sum is 56.

The square root of 1159897673 is about 34057.2704866377. The cubic root of 1159897673 is about 1050.6866779644.

The spelling of 1159897673 in words is "one billion, one hundred fifty-nine million, eight hundred ninety-seven thousand, six hundred seventy-three".