1125378836 has 12 divisors (see below), whose sum is σ = 1970217312. Its totient is φ = 562459608.

The previous prime is 1125378829. The next prime is 1125378871. The reversal of 1125378836 is 6388735211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46190 + ... + 66213.

It is an arithmetic number, because the mean of its divisors is an integer number (164184776).

Almost surely, 2^1125378836 is an apocalyptic number.

It is an amenable number.

1125378836 is a deficient number, since it is larger than the sum of its proper divisors (844838476).

1125378836 is a wasteful number, since it uses less digits than its factorization.

1125378836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114910 (or 114908 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 1125378836 is about 33546.6665408055. Note that the first 3 decimals coincide. The cubic root of 1125378836 is about 1040.1586407407.

The spelling of 1125378836 in words is "one billion, one hundred twenty-five million, three hundred seventy-eight thousand, eight hundred thirty-six".