1125544051 has 2 divisors, whose sum is σ = 1125544052. Its totient is φ = 1125544050.

The previous prime is 1125544039. The next prime is 1125544067. The reversal of 1125544051 is 1504455211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1125544051 - 2⁵ = 1125544019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1125544081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562772025 + 562772026.

It is an arithmetic number, because the mean of its divisors is an integer number (562772026).

Almost surely, 2^1125544051 is an apocalyptic number.

1125544051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125544051 is an equidigital number, since it uses as much as digits as its factorization.

1125544051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1125544051 is about 33549.1289156663. The cubic root of 1125544051 is about 1040.2095395715.

Adding to 1125544051 its reverse (1504455211), we get a palindrome (2629999262).

The spelling of 1125544051 in words is "one billion, one hundred twenty-five million, five hundred forty-four thousand, fifty-one".