6972161 has 8 divisors (see below), whose sum is σ = 8131200. Its totient is φ = 5975844.

The previous prime is 6972127. The next prime is 6972233. The reversal of 6972161 is 1612796.

It is a happy number.

It is not a de Polignac number, because 6972161 - 2¹⁰ = 6971137 is a prime.

It is a super-2 number, since 2×6972161² = 97222058019842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6972061) 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, 9821 + ... + 10506.

It is an arithmetic number, because the mean of its divisors is an integer number (1016400).

Almost surely, 2^6972161 is an apocalyptic number.

It is an amenable number.

6972161 is a deficient number, since it is larger than the sum of its proper divisors (1159039).

6972161 is an equidigital number, since it uses as much as digits as its factorization.

6972161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20348 (or 20334 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 6972161 is about 2640.4849933298. The cubic root of 6972161 is about 191.0391904450.

The spelling of 6972161 in words is "six million, nine hundred seventy-two thousand, one hundred sixty-one".