1125333451 has 4 divisors (see below), whose sum is σ = 1227636504. Its totient is φ = 1023030400.

The previous prime is 1125333427. The next prime is 1125333493. The reversal of 1125333451 is 1543335211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125333451 - 2⁹ = 1125332939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125343451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51151510 + ... + 51151531.

It is an arithmetic number, because the mean of its divisors is an integer number (306909126).

Almost surely, 2^1125333451 is an apocalyptic number.

1125333451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1125333451 is a deficient number, since it is larger than the sum of its proper divisors (102303053).

1125333451 is a wasteful number, since it uses less digits than its factorization.

1125333451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102303052.

The product of its digits is 5400, while the sum is 28.

The square root of 1125333451 is about 33545.9900882356. The cubic root of 1125333451 is about 1040.1446578243.

Adding to 1125333451 its reverse (1543335211), we get a palindrome (2668668662).

The spelling of 1125333451 in words is "one billion, one hundred twenty-five million, three hundred thirty-three thousand, four hundred fifty-one".