1125154523 has 2 divisors, whose sum is σ = 1125154524. Its totient is φ = 1125154522.

The previous prime is 1125154519. The next prime is 1125154553. The reversal of 1125154523 is 3254515211.

It is a weak prime.

It is an emirp because it is prime and its reverse (3254515211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1125154523 - 2² = 1125154519 is a prime.

It is not a weakly prime, because it can be changed into another prime (1125154553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562577261 + 562577262.

It is an arithmetic number, because the mean of its divisors is an integer number (562577262).

Almost surely, 2^1125154523 is an apocalyptic number.

1125154523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125154523 is an equidigital number, since it uses as much as digits as its factorization.

1125154523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6000, while the sum is 29.

The square root of 1125154523 is about 33543.3230762845. The cubic root of 1125154523 is about 1040.0895272412.

Adding to 1125154523 its reverse (3254515211), we get a palindrome (4379669734).

The spelling of 1125154523 in words is "one billion, one hundred twenty-five million, one hundred fifty-four thousand, five hundred twenty-three".