1045121 has 16 divisors (see below), whose sum is σ = 1334400. Its totient is φ = 811440.

The previous prime is 1045117. The next prime is 1045123. The reversal of 1045121 is 1215401.

It is not a de Polignac number, because 1045121 - 2² = 1045117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1045096 and 1045105.

It is not an unprimeable number, because it can be changed into a prime (1045123) 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 15 ways as a sum of consecutive naturals, for example, 3635 + ... + 3911.

It is an arithmetic number, because the mean of its divisors is an integer number (83400).

2^1045121 is an apocalyptic number.

1045121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1045121 is a deficient number, since it is larger than the sum of its proper divisors (289279).

1045121 is an equidigital number, since it uses as much as digits as its factorization.

1045121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1045121 is about 1022.3115963345. The cubic root of 1045121 is about 101.4819627084.

It can be divided in two parts, 104 and 5121, that added together give a palindrome (5225).

The spelling of 1045121 in words is "one million, forty-five thousand, one hundred twenty-one".