106974221 has 4 divisors (see below), whose sum is σ = 107029632. Its totient is φ = 106918812.

The previous prime is 106974191. The next prime is 106974223. The reversal of 106974221 is 122479601.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122479601 = 1297 ⋅94433.

It is a cyclic number.

It is not a de Polignac number, because 106974221 - 2⁶ = 106974157 is a prime.

It is a super-2 number, since 2×106974221² = 22886967917113682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106974223) 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, 24701 + ... + 28706.

It is an arithmetic number, because the mean of its divisors is an integer number (26757408).

Almost surely, 2^106974221 is an apocalyptic number.

It is an amenable number.

106974221 is a deficient number, since it is larger than the sum of its proper divisors (55411).

106974221 is an equidigital number, since it uses as much as digits as its factorization.

106974221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55410.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 106974221 is about 10342.8342827293. The cubic root of 106974221 is about 474.7078106979.

The spelling of 106974221 in words is "one hundred six million, nine hundred seventy-four thousand, two hundred twenty-one".