2145122 has 32 divisors (see below), whose sum is σ = 3888000. Its totient is φ = 886704.

The previous prime is 2145113. The next prime is 2145131. The reversal of 2145122 is 2215412.

It is an interprime number because it is at equal distance from previous prime (2145113) and next prime (2145131).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2145122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36329 + ... + 36387.

It is an arithmetic number, because the mean of its divisors is an integer number (121500).

2^2145122 is an apocalyptic number.

2145122 is a deficient number, since it is larger than the sum of its proper divisors (1742878).

2145122 is an equidigital number, since it uses as much as digits as its factorization.

2145122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 121 counting only the distinct ones).

The product of its digits is 160, while the sum is 17.

The square root of 2145122 is about 1464.6235011087. The cubic root of 2145122 is about 128.9686040214.

The spelling of 2145122 in words is "two million, one hundred forty-five thousand, one hundred twenty-two".