1146212643 has 4 divisors (see below), whose sum is σ = 1528283528. Its totient is φ = 764141760.

The previous prime is 1146212633. The next prime is 1146212651. The reversal of 1146212643 is 3462126411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3462126411 = 3 ⋅1154042137.

It is not a de Polignac number, because 1146212643 - 2⁵ = 1146212611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1146212643.

It is not an unprimeable number, because it can be changed into a prime (1146212633) 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, 191035438 + ... + 191035443.

It is an arithmetic number, because the mean of its divisors is an integer number (382070882).

Almost surely, 2^1146212643 is an apocalyptic number.

1146212643 is a deficient number, since it is larger than the sum of its proper divisors (382070885).

1146212643 is an equidigital number, since it uses as much as digits as its factorization.

1146212643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382070884.

The product of its digits is 6912, while the sum is 30.

The square root of 1146212643 is about 33855.7623308057. The cubic root of 1146212643 is about 1046.5381507566.

It can be divided in two parts, 1146212 and 643, that added together give a triangular number (1146855 = T₁₅₁₄).

The spelling of 1146212643 in words is "one billion, one hundred forty-six million, two hundred twelve thousand, six hundred forty-three".