1125451 has 8 divisors (see below), whose sum is σ = 1200960. Its totient is φ = 1051008.

The previous prime is 1125433. The next prime is 1125469. The reversal of 1125451 is 1545211.

It is an interprime number because it is at equal distance from previous prime (1125433) and next prime (1125469).

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

It is not a de Polignac number, because 1125451 - 2⁵ = 1125419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125401) 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, 3925 + ... + 4201.

It is an arithmetic number, because the mean of its divisors is an integer number (150120).

2^1125451 is an apocalyptic number.

1125451 is a deficient number, since it is larger than the sum of its proper divisors (75509).

1125451 is a wasteful number, since it uses less digits than its factorization.

1125451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its digits is 200, while the sum is 19.

The square root of 1125451 is about 1060.8727539154. The cubic root of 1125451 is about 104.0180873374.

The spelling of 1125451 in words is "one million, one hundred twenty-five thousand, four hundred fifty-one".