1146663431 has 4 divisors (see below), whose sum is σ = 1151023632. Its totient is φ = 1142303232.

The previous prime is 1146663391. The next prime is 1146663443. The reversal of 1146663431 is 1343666411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1343666411 = 281 ⋅4781731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1146663431 is a prime.

It is a super-2 number, since 2×1146663431² = 2629674047985383522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1146663391 and 1146663400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146663491) 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, 2179706 + ... + 2180231.

It is an arithmetic number, because the mean of its divisors is an integer number (287755908).

Almost surely, 2^1146663431 is an apocalyptic number.

1146663431 is a deficient number, since it is larger than the sum of its proper divisors (4360201).

1146663431 is an equidigital number, since it uses as much as digits as its factorization.

1146663431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360200.

The product of its digits is 31104, while the sum is 35.

The square root of 1146663431 is about 33862.4191545731. The cubic root of 1146663431 is about 1046.6753286209.

The spelling of 1146663431 in words is "one billion, one hundred forty-six million, six hundred sixty-three thousand, four hundred thirty-one".