7490149 has 8 divisors (see below), whose sum is σ = 8204760. Its totient is φ = 6806016.

The previous prime is 7490143. The next prime is 7490159. The reversal of 7490149 is 9410947.

It can be written as a sum of positive squares in 4 ways, for example, as 4452100 + 3038049 = 2110^2 + 1743^2 .

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 7490149 - 2³ = 7490141 is a prime.

It is a super-3 number, since 3×7490149³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a Duffinian number.

7490149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7490141) 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, 7104 + ... + 8089.

It is an arithmetic number, because the mean of its divisors is an integer number (1025595).

Almost surely, 2^7490149 is an apocalyptic number.

It is an amenable number.

7490149 is a deficient number, since it is larger than the sum of its proper divisors (714611).

7490149 is a wasteful number, since it uses less digits than its factorization.

7490149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15239.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 7490149 is about 2736.8136582530. The cubic root of 7490149 is about 195.6576437068.

The spelling of 7490149 in words is "seven million, four hundred ninety thousand, one hundred forty-nine".