7227161 has 8 divisors (see below), whose sum is σ = 7392384. Its totient is φ = 7063840.

The previous prime is 7227137. The next prime is 7227167. The reversal of 7227161 is 1617227.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7227161 is a prime.

It is a super-2 number, since 2×7227161² = 104463712239842, which contains 22 as substring.

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 7227161.

It is not an unprimeable number, because it can be changed into a prime (7227167) 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, 9356 + ... + 10098.

It is an arithmetic number, because the mean of its divisors is an integer number (924048).

Almost surely, 2^7227161 is an apocalyptic number.

7227161 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7227161 is a deficient number, since it is larger than the sum of its proper divisors (165223).

7227161 is a wasteful number, since it uses less digits than its factorization.

7227161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951.

The product of its digits is 1176, while the sum is 26.

The square root of 7227161 is about 2688.3379623849. The cubic root of 7227161 is about 193.3403838755.

The spelling of 7227161 in words is "seven million, two hundred twenty-seven thousand, one hundred sixty-one".