1125477919 has 2 divisors, whose sum is σ = 1125477920. Its totient is φ = 1125477918.

The previous prime is 1125477917. The next prime is 1125477931. The reversal of 1125477919 is 9197745211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1125477919 - 2¹ = 1125477917 is a prime.

It is a super-2 number, since 2×1125477919² = 2533401092313141122, which contains 22 as substring.

Together with 1125477917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125477917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562738959 + 562738960.

It is an arithmetic number, because the mean of its divisors is an integer number (562738960).

Almost surely, 2^1125477919 is an apocalyptic number.

1125477919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125477919 is an equidigital number, since it uses as much as digits as its factorization.

1125477919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 46.

The square root of 1125477919 is about 33548.1433018282. The cubic root of 1125477919 is about 1040.1891664655.

The spelling of 1125477919 in words is "one billion, one hundred twenty-five million, four hundred seventy-seven thousand, nine hundred nineteen".