7139226 has 8 divisors (see below), whose sum is σ = 14278464. Its totient is φ = 2379740.

The previous prime is 7139219. The next prime is 7139273. The reversal of 7139226 is 6229317.

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

7139226 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7139193 and 7139202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594930 + ... + 594941.

It is an arithmetic number, because the mean of its divisors is an integer number (1784808).

Almost surely, 2^7139226 is an apocalyptic number.

7139226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7139226 is a wasteful number, since it uses less digits than its factorization.

7139226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189876.

The product of its digits is 4536, while the sum is 30.

The square root of 7139226 is about 2671.9330081422. The cubic root of 7139226 is about 192.5530387387.

Subtracting from 7139226 its reverse (6229317), we obtain a palindrome (909909).

The spelling of 7139226 in words is "seven million, one hundred thirty-nine thousand, two hundred twenty-six".