1125124051 has 8 divisors (see below), whose sum is σ = 1184816160. Its totient is φ = 1066329792.

The previous prime is 1125124043. The next prime is 1125124057. The reversal of 1125124051 is 1504215211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1125124051 - 2³ = 1125124043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125124057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221890 + ... + 226903.

It is an arithmetic number, because the mean of its divisors is an integer number (148102020).

Almost surely, 2^1125124051 is an apocalyptic number.

1125124051 is a deficient number, since it is larger than the sum of its proper divisors (59692109).

1125124051 is a wasteful number, since it uses less digits than its factorization.

1125124051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448925.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1125124051 is about 33542.8688546463. The cubic root of 1125124051 is about 1040.0801377474.

Adding to 1125124051 its reverse (1504215211), we get a palindrome (2629339262).

The spelling of 1125124051 in words is "one billion, one hundred twenty-five million, one hundred twenty-four thousand, fifty-one".