122195405 has 16 divisors (see below), whose sum is σ = 155539440. Its totient is φ = 91840512.

The previous prime is 122195399. The next prime is 122195407. The reversal of 122195405 is 504591221.

It can be written as a sum of positive squares in 8 ways, for example, as 10407076 + 111788329 = 3226^2 + 10573^2 .

It is a cyclic number.

It is not a de Polignac number, because 122195405 - 2⁶ = 122195341 is a prime.

It is a super-2 number, since 2×122195405² = 29863434006228050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122195407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67877 + ... + 69653.

It is an arithmetic number, because the mean of its divisors is an integer number (9721215).

Almost surely, 2^122195405 is an apocalyptic number.

It is an amenable number.

122195405 is a deficient number, since it is larger than the sum of its proper divisors (33344035).

122195405 is a wasteful number, since it uses less digits than its factorization.

122195405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 122195405 is about 11054.2030468053. The cubic root of 122195405 is about 496.2322189696.

The spelling of 122195405 in words is "one hundred twenty-two million, one hundred ninety-five thousand, four hundred five".