7499149 has 8 divisors (see below), whose sum is σ = 8656128. Its totient is φ = 6363600.

The previous prime is 7499147. The next prime is 7499153. The reversal of 7499149 is 9419947.

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 7499149 - 2¹ = 7499147 is a prime.

It is a Duffinian number.

7499149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7499147) 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, 4597 + ... + 6010.

It is an arithmetic number, because the mean of its divisors is an integer number (1082016).

Almost surely, 2^7499149 is an apocalyptic number.

It is an amenable number.

7499149 is a deficient number, since it is larger than the sum of its proper divisors (1156979).

7499149 is a wasteful number, since it uses less digits than its factorization.

7499149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10715.

The product of its digits is 81648, while the sum is 43.

The square root of 7499149 is about 2738.4574124861. The cubic root of 7499149 is about 195.7359783287.

The spelling of 7499149 in words is "seven million, four hundred ninety-nine thousand, one hundred forty-nine".