1072491 has 8 divisors (see below), whose sum is σ = 1634304. Its totient is φ = 612840.

The previous prime is 1072471. The next prime is 1072517. The reversal of 1072491 is 1942701.

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

It is not a de Polignac number, because 1072491 - 2⁵ = 1072459 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

1072491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1072471) 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 7 ways as a sum of consecutive naturals, for example, 25515 + ... + 25556.

It is an arithmetic number, because the mean of its divisors is an integer number (204288).

2^1072491 is an apocalyptic number.

1072491 is a deficient number, since it is larger than the sum of its proper divisors (561813).

1072491 is an equidigital number, since it uses as much as digits as its factorization.

1072491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51081.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1072491 is about 1035.6114136103. The cubic root of 1072491 is about 102.3602219258.

The spelling of 1072491 in words is "one million, seventy-two thousand, four hundred ninety-one".