1125471 has 4 divisors (see below), whose sum is σ = 1500632. Its totient is φ = 750312.

The previous prime is 1125469. The next prime is 1125473. The reversal of 1125471 is 1745211.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (1125469) and next prime (1125473).

It is not a de Polignac number, because 1125471 - 2¹ = 1125469 is a prime.

It is a super-3 number, since 3×1125471³ = 4276851605828586333, which contains 333 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187576 + ... + 187581.

It is an arithmetic number, because the mean of its divisors is an integer number (375158).

2^1125471 is an apocalyptic number.

1125471 is a deficient number, since it is larger than the sum of its proper divisors (375161).

1125471 is an equidigital number, since it uses as much as digits as its factorization.

1125471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375160.

The product of its digits is 280, while the sum is 21.

The square root of 1125471 is about 1060.8821800747. The cubic root of 1125471 is about 104.0187034902.

It can be divided in two parts, 11254 and 71, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 1125471 in words is "one million, one hundred twenty-five thousand, four hundred seventy-one".