7149199 has 4 divisors (see below), whose sum is σ = 7156864. Its totient is φ = 7141536.

The previous prime is 7149193. The next prime is 7149209. The reversal of 7149199 is 9919417.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7149199 - 2¹³ = 7141007 is a prime.

It is a super-2 number, since 2×7149199² = 102222092683202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7149193) 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 3 ways as a sum of consecutive naturals, for example, 2202 + ... + 4375.

It is an arithmetic number, because the mean of its divisors is an integer number (1789216).

Almost surely, 2^7149199 is an apocalyptic number.

7149199 is a deficient number, since it is larger than the sum of its proper divisors (7665).

7149199 is a wasteful number, since it uses less digits than its factorization.

7149199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7664.

The product of its digits is 20412, while the sum is 40.

The square root of 7149199 is about 2673.7986087213. The cubic root of 7149199 is about 192.6426580690.

The spelling of 7149199 in words is "seven million, one hundred forty-nine thousand, one hundred ninety-nine".