1146899173 has 4 divisors (see below), whose sum is σ = 1310741920. Its totient is φ = 983056428.

The previous prime is 1146899161. The next prime is 1146899183. The reversal of 1146899173 is 3719986411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3719986411 = 23021 ⋅161591.

It is a cyclic number.

It is not a de Polignac number, because 1146899173 - 2⁵ = 1146899141 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 (1146899183) 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, 81921363 + ... + 81921376.

It is an arithmetic number, because the mean of its divisors is an integer number (327685480).

Almost surely, 2^1146899173 is an apocalyptic number.

It is an amenable number.

1146899173 is a deficient number, since it is larger than the sum of its proper divisors (163842747).

1146899173 is an equidigital number, since it uses as much as digits as its factorization.

1146899173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163842746.

The product of its digits is 326592, while the sum is 49.

The square root of 1146899173 is about 33865.8998551640. The cubic root of 1146899173 is about 1046.7470522035.

The spelling of 1146899173 in words is "one billion, one hundred forty-six million, eight hundred ninety-nine thousand, one hundred seventy-three".