1125123577 has 2 divisors, whose sum is σ = 1125123578. Its totient is φ = 1125123576.

The previous prime is 1125123533. The next prime is 1125123611. The reversal of 1125123577 is 7753215211.

It is an a-pointer prime, because the next prime (1125123611) can be obtained adding 1125123577 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 855211536 + 269912041 = 29244^2 + 16429^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125123577 - 2⁷ = 1125123449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1125123677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562561788 + 562561789.

It is an arithmetic number, because the mean of its divisors is an integer number (562561789).

Almost surely, 2^1125123577 is an apocalyptic number.

It is an amenable number.

1125123577 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125123577 is an equidigital number, since it uses as much as digits as its factorization.

1125123577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14700, while the sum is 34.

The square root of 1125123577 is about 33542.8617890603. The cubic root of 1125123577 is about 1040.0799916900.

Adding to 1125123577 its reverse (7753215211), we get a palindrome (8878338788).

The spelling of 1125123577 in words is "one billion, one hundred twenty-five million, one hundred twenty-three thousand, five hundred seventy-seven".