122271945 has 8 divisors (see below), whose sum is σ = 195635136. Its totient is φ = 65211696.

The previous prime is 122271943. The next prime is 122271953. The reversal of 122271945 is 549172221.

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

It is not a de Polignac number, because 122271945 - 2¹ = 122271943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122271943) 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, 4075717 + ... + 4075746.

It is an arithmetic number, because the mean of its divisors is an integer number (24454392).

Almost surely, 2^122271945 is an apocalyptic number.

122271945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122271945 is a deficient number, since it is larger than the sum of its proper divisors (73363191).

122271945 is an equidigital number, since it uses as much as digits as its factorization.

122271945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151471.

The product of its digits is 10080, while the sum is 33.

The square root of 122271945 is about 11057.6645364200. The cubic root of 122271945 is about 496.3358062979.

The spelling of 122271945 in words is "one hundred twenty-two million, two hundred seventy-one thousand, nine hundred forty-five".