1127125897 has 2 divisors, whose sum is σ = 1127125898. Its totient is φ = 1127125896.

The previous prime is 1127125877. The next prime is 1127125903. The reversal of 1127125897 is 7985217211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617224336 + 509901561 = 24844^2 + 22581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1127125897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1127125817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563562948 + 563562949.

It is an arithmetic number, because the mean of its divisors is an integer number (563562949).

Almost surely, 2^1127125897 is an apocalyptic number.

It is an amenable number.

1127125897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127125897 is an equidigital number, since it uses as much as digits as its factorization.

1127125897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 43.

The square root of 1127125897 is about 33572.6957064815. The cubic root of 1127125897 is about 1040.6966169266.

The spelling of 1127125897 in words is "one billion, one hundred twenty-seven million, one hundred twenty-five thousand, eight hundred ninety-seven".