1125477917 has 2 divisors, whose sum is σ = 1125477918. Its totient is φ = 1125477916.

The previous prime is 1125477833. The next prime is 1125477919. The reversal of 1125477917 is 7197745211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1021825156 + 103652761 = 31966^2 + 10181^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125477917 - 2¹⁶ = 1125412381 is a prime.

Together with 1125477919, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125477919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562738958 + 562738959.

It is an arithmetic number, because the mean of its divisors is an integer number (562738959).

Almost surely, 2^1125477917 is an apocalyptic number.

It is an amenable number.

1125477917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125477917 is an equidigital number, since it uses as much as digits as its factorization.

1125477917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 44.

The square root of 1125477917 is about 33548.1432720203. The cubic root of 1125477917 is about 1040.1891658494.

The spelling of 1125477917 in words is "one billion, one hundred twenty-five million, four hundred seventy-seven thousand, nine hundred seventeen".