122685145 has 8 divisors (see below), whose sum is σ = 160606080. Its totient is φ = 89225520.

The previous prime is 122685139. The next prime is 122685179. The reversal of 122685145 is 541586221.

It is a happy number.

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

It is not a de Polignac number, because 122685145 - 2³ = 122685137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122685145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115265 + ... + 1115374.

It is an arithmetic number, because the mean of its divisors is an integer number (20075760).

Almost surely, 2^122685145 is an apocalyptic number.

It is an amenable number.

122685145 is a deficient number, since it is larger than the sum of its proper divisors (37920935).

122685145 is a wasteful number, since it uses less digits than its factorization.

122685145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230655.

The product of its digits is 19200, while the sum is 34.

The square root of 122685145 is about 11076.3326511982. The cubic root of 122685145 is about 496.8942755599.

The spelling of 122685145 in words is "one hundred twenty-two million, six hundred eighty-five thousand, one hundred forty-five".