7155422 has 16 divisors (see below), whose sum is σ = 11048400. Its totient is φ = 3474240.

The previous prime is 7155413. The next prime is 7155439. The reversal of 7155422 is 2245517.

It is a junction number, because it is equal to n+sod(n) for n = 7155391 and 7155400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10529 + ... + 11187.

It is an arithmetic number, because the mean of its divisors is an integer number (690525).

Almost surely, 2^7155422 is an apocalyptic number.

7155422 is a deficient number, since it is larger than the sum of its proper divisors (3892978).

7155422 is a wasteful number, since it uses less digits than its factorization.

7155422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its digits is 2800, while the sum is 26.

The square root of 7155422 is about 2674.9620558057. The cubic root of 7155422 is about 192.6985369441.

The spelling of 7155422 in words is "seven million, one hundred fifty-five thousand, four hundred twenty-two".