1125144946 has 8 divisors (see below), whose sum is σ = 1690272684. Its totient is φ = 561720720.

The previous prime is 1125144893. The next prime is 1125144947. The reversal of 1125144946 is 6494415211.

It can be written as a sum of positive squares in 2 ways, for example, as 1106560225 + 18584721 = 33265^2 + 4311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1125144946² = 2531902299018685832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1125144947) 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, 424225 + ... + 426868.

Almost surely, 2^1125144946 is an apocalyptic number.

1125144946 is a deficient number, since it is larger than the sum of its proper divisors (565127738).

1125144946 is an equidigital number, since it uses as much as digits as its factorization.

1125144946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851756.

The product of its digits is 34560, while the sum is 37.

The square root of 1125144946 is about 33543.1803202976. The cubic root of 1125144946 is about 1040.0865762492.

The spelling of 1125144946 in words is "one billion, one hundred twenty-five million, one hundred forty-four thousand, nine hundred forty-six".