122129065 has 4 divisors (see below), whose sum is σ = 146554884. Its totient is φ = 97703248.

The previous prime is 122129053. The next prime is 122129069. The reversal of 122129065 is 560921221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78092569 + 44036496 = 8837^2 + 6636^2 .

It is a cyclic number.

It is not a de Polignac number, because 122129065 - 2¹⁵ = 122096297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122129069) 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, 12212902 + ... + 12212911.

It is an arithmetic number, because the mean of its divisors is an integer number (36638721).

Almost surely, 2^122129065 is an apocalyptic number.

It is an amenable number.

122129065 is a deficient number, since it is larger than the sum of its proper divisors (24425819).

122129065 is an equidigital number, since it uses as much as digits as its factorization.

122129065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24425818.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 122129065 is about 11051.2019708265. The cubic root of 122129065 is about 496.1424010679.

The spelling of 122129065 in words is "one hundred twenty-two million, one hundred twenty-nine thousand, sixty-five".