1125473837 has 4 divisors (see below), whose sum is σ = 1125764220. Its totient is φ = 1125183456.

The previous prime is 1125473779. The next prime is 1125473849. The reversal of 1125473837 is 7383745211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7383745211 = 19 ⋅388618169.

It can be written as a sum of positive squares in 2 ways, for example, as 308142916 + 817330921 = 17554^2 + 28589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125473837 - 2⁶ = 1125473773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125473794 and 1125473803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125473537) 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, 139298 + ... + 147155.

It is an arithmetic number, because the mean of its divisors is an integer number (281441055).

Almost surely, 2^1125473837 is an apocalyptic number.

It is an amenable number.

1125473837 is a deficient number, since it is larger than the sum of its proper divisors (290383).

1125473837 is an equidigital number, since it uses as much as digits as its factorization.

1125473837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290382.

The product of its digits is 141120, while the sum is 41.

The square root of 1125473837 is about 33548.0824638309. The cubic root of 1125473837 is about 1040.1879089087.

The spelling of 1125473837 in words is "one billion, one hundred twenty-five million, four hundred seventy-three thousand, eight hundred thirty-seven".