1125857437 has 8 divisors (see below), whose sum is σ = 1142361792. Its totient is φ = 1109371200.

The previous prime is 1125857377. The next prime is 1125857441. The reversal of 1125857437 is 7347585211.

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

It is a cyclic number.

It is not a de Polignac number, because 1125857437 - 2⁷ = 1125857309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125857393 and 1125857402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125867437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167893 + ... + 174469.

It is an arithmetic number, because the mean of its divisors is an integer number (142795224).

Almost surely, 2^1125857437 is an apocalyptic number.

It is an amenable number.

1125857437 is a deficient number, since it is larger than the sum of its proper divisors (16504355).

1125857437 is an equidigital number, since it uses as much as digits as its factorization.

1125857437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9059.

The product of its digits is 235200, while the sum is 43.

The square root of 1125857437 is about 33553.7991440612. The cubic root of 1125857437 is about 1040.3060726973.

The spelling of 1125857437 in words is "one billion, one hundred twenty-five million, eight hundred fifty-seven thousand, four hundred thirty-seven".