7149443 has 12 divisors (see below), whose sum is σ = 8461080. Its totient is φ = 6021792.

The previous prime is 7149433. The next prime is 7149449. The reversal of 7149443 is 3449417.

It is a happy number.

It is not a de Polignac number, because 7149443 - 2⁶ = 7149379 is a prime.

It is a super-2 number, since 2×7149443² = 102229070420498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7149449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1655 + ... + 4127.

It is an arithmetic number, because the mean of its divisors is an integer number (705090).

Almost surely, 2^7149443 is an apocalyptic number.

7149443 is a deficient number, since it is larger than the sum of its proper divisors (1311637).

7149443 is a wasteful number, since it uses less digits than its factorization.

7149443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546 (or 2539 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 7149443 is about 2673.8442363010. The cubic root of 7149443 is about 192.6448496559.

The spelling of 7149443 in words is "seven million, one hundred forty-nine thousand, four hundred forty-three".