7162091 has 4 divisors (see below), whose sum is σ = 7194432. Its totient is φ = 7129752.

The previous prime is 7162087. The next prime is 7162093. The reversal of 7162091 is 1902617.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7162091 - 2² = 7162087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7162091.

It is not an unprimeable number, because it can be changed into a prime (7162093) 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, 15836 + ... + 16281.

It is an arithmetic number, because the mean of its divisors is an integer number (1798608).

Almost surely, 2^7162091 is an apocalyptic number.

7162091 is a deficient number, since it is larger than the sum of its proper divisors (32341).

7162091 is a wasteful number, since it uses less digits than its factorization.

7162091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32340.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 7162091 is about 2676.2083252243. The cubic root of 7162091 is about 192.7583846838.

The spelling of 7162091 in words is "seven million, one hundred sixty-two thousand, ninety-one".