6215161 has 4 divisors (see below), whose sum is σ = 6222672. Its totient is φ = 6207652.

The previous prime is 6215141. The next prime is 6215171. The reversal of 6215161 is 1615126.

6215161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6215161 - 2¹³ = 6206969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6215101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2335 + ... + 4228.

It is an arithmetic number, because the mean of its divisors is an integer number (1555668).

Almost surely, 2^6215161 is an apocalyptic number.

It is an amenable number.

6215161 is a deficient number, since it is larger than the sum of its proper divisors (7511).

6215161 is an equidigital number, since it uses as much as digits as its factorization.

6215161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7510.

The product of its digits is 360, while the sum is 22.

The square root of 6215161 is about 2493.0224627949. The cubic root of 6215161 is about 183.8586757441.

The spelling of 6215161 in words is "six million, two hundred fifteen thousand, one hundred sixty-one".