7229139 has 8 divisors (see below), whose sum is σ = 10146240. Its totient is φ = 4565736.

The previous prime is 7229137. The next prime is 7229141. The reversal of 7229139 is 9319227.

It is an interprime number because it is at equal distance from previous prime (7229137) and next prime (7229141).

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

It is not a de Polignac number, because 7229139 - 2¹ = 7229137 is a prime.

It is a super-3 number, since 3×7229139³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7229137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63357 + ... + 63470.

It is an arithmetic number, because the mean of its divisors is an integer number (1268280).

Almost surely, 2^7229139 is an apocalyptic number.

7229139 is a deficient number, since it is larger than the sum of its proper divisors (2917101).

7229139 is a wasteful number, since it uses less digits than its factorization.

7229139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126849.

The product of its digits is 6804, while the sum is 33.

The square root of 7229139 is about 2688.7058225102. The cubic root of 7229139 is about 193.3580206947.

The spelling of 7229139 in words is "seven million, two hundred twenty-nine thousand, one hundred thirty-nine".