1450921 has 4 divisors (see below), whose sum is σ = 1453572. Its totient is φ = 1448272.

The previous prime is 1450919. The next prime is 1450927. The reversal of 1450921 is 1290541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 440896 + 1010025 = 664^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 1450921 - 2¹ = 1450919 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1450921 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1450892 and 1450901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450927) 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, 166 + ... + 1711.

It is an arithmetic number, because the mean of its divisors is an integer number (363393).

2^1450921 is an apocalyptic number.

It is an amenable number.

1450921 is a deficient number, since it is larger than the sum of its proper divisors (2651).

1450921 is an equidigital number, since it uses as much as digits as its factorization.

1450921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1450921 is about 1204.5418216069. The cubic root of 1450921 is about 113.2090785462.

The spelling of 1450921 in words is "one million, four hundred fifty thousand, nine hundred twenty-one".