7491045 has 8 divisors (see below), whose sum is σ = 11985696. Its totient is φ = 3995216.

The previous prime is 7491007. The next prime is 7491049. The reversal of 7491045 is 5401947.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7491045 - 2⁶ = 7490981 is a prime.

It is a super-2 number, since 2×7491045² = 112231510384050, which contains 22 as substring.

It is an Ulam number.

7491045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7491049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249687 + ... + 249716.

It is an arithmetic number, because the mean of its divisors is an integer number (1498212).

Almost surely, 2^7491045 is an apocalyptic number.

It is an amenable number.

7491045 is a deficient number, since it is larger than the sum of its proper divisors (4494651).

7491045 is a wasteful number, since it uses less digits than its factorization.

7491045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499411.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 7491045 is about 2736.9773473670. The cubic root of 7491045 is about 195.6654451653.

It can be divided in two parts, 74 and 91045, that added together give a palindrome (91119).

The spelling of 7491045 in words is "seven million, four hundred ninety-one thousand, forty-five".