1125253819 has 2 divisors, whose sum is σ = 1125253820. Its totient is φ = 1125253818.

The previous prime is 1125253807. The next prime is 1125253847. The reversal of 1125253819 is 9183525211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1125253819 is a prime.

It is a super-2 number, since 2×1125253819² = 2532392314348169522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1125253859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562626909 + 562626910.

It is an arithmetic number, because the mean of its divisors is an integer number (562626910).

Almost surely, 2^1125253819 is an apocalyptic number.

1125253819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125253819 is an equidigital number, since it uses as much as digits as its factorization.

1125253819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 37.

The square root of 1125253819 is about 33544.8031593569. The cubic root of 1125253819 is about 1040.1201226511.

The spelling of 1125253819 in words is "one billion, one hundred twenty-five million, two hundred fifty-three thousand, eight hundred nineteen".