1451091 has 4 divisors (see below), whose sum is σ = 1934792. Its totient is φ = 967392.

The previous prime is 1451083. The next prime is 1451119. The reversal of 1451091 is 1901541.

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

It is not a de Polignac number, because 1451091 - 2³ = 1451083 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1451041) 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, 241846 + ... + 241851.

It is an arithmetic number, because the mean of its divisors is an integer number (483698).

2^1451091 is an apocalyptic number.

1451091 is a deficient number, since it is larger than the sum of its proper divisors (483701).

1451091 is an equidigital number, since it uses as much as digits as its factorization.

1451091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483700.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1451091 is about 1204.6123857905. The cubic root of 1451091 is about 113.2134998280.

The spelling of 1451091 in words is "one million, four hundred fifty-one thousand, ninety-one".