7155426 has 8 divisors (see below), whose sum is σ = 14310864. Its totient is φ = 2385140.

The previous prime is 7155413. The next prime is 7155439. The reversal of 7155426 is 6245517.

It is an interprime number because it is at equal distance from previous prime (7155413) and next prime (7155439).

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

7155426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7155393 and 7155402.

It is an unprimeable number.

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, 596280 + ... + 596291.

It is an arithmetic number, because the mean of its divisors is an integer number (1788858).

Almost surely, 2^7155426 is an apocalyptic number.

7155426 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.

7155426 is a wasteful number, since it uses less digits than its factorization.

7155426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192576.

The product of its digits is 8400, while the sum is 30.

The square root of 7155426 is about 2674.9628034797. The cubic root of 7155426 is about 192.6985728513.

Subtracting from 7155426 its reverse (6245517), we obtain a palindrome (909909).

The spelling of 7155426 in words is "seven million, one hundred fifty-five thousand, four hundred twenty-six".