1125033451 has 8 divisors (see below), whose sum is σ = 1144941840. Its totient is φ = 1105294848.

The previous prime is 1125033449. The next prime is 1125033473. The reversal of 1125033451 is 1543305211.

It is a happy number.

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 1125033451 - 2¹ = 1125033449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125033251) 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, 29041 + ... + 55618.

It is an arithmetic number, because the mean of its divisors is an integer number (143117730).

Almost surely, 2^1125033451 is an apocalyptic number.

1125033451 is a deficient number, since it is larger than the sum of its proper divisors (19908389).

1125033451 is an equidigital number, since it uses as much as digits as its factorization.

1125033451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84893.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1125033451 is about 33541.5183168562. The cubic root of 1125033451 is about 1040.0522197029.

Adding to 1125033451 its reverse (1543305211), we get a palindrome (2668338662).

The spelling of 1125033451 in words is "one billion, one hundred twenty-five million, thirty-three thousand, four hundred fifty-one".