122143369 has 4 divisors (see below), whose sum is σ = 122493700. Its totient is φ = 121793040.

The previous prime is 122143367. The next prime is 122143421. The reversal of 122143369 is 963341221.

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 51667344 + 70476025 = 7188^2 + 8395^2 .

It is a cyclic number.

It is not a de Polignac number, because 122143369 - 2¹ = 122143367 is a prime.

It is a super-2 number, since 2×122143369² = 29838005181340322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122143369.

It is not an unprimeable number, because it can be changed into a prime (122143361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174642 + ... + 175339.

It is an arithmetic number, because the mean of its divisors is an integer number (30623425).

Almost surely, 2^122143369 is an apocalyptic number.

It is an amenable number.

122143369 is a deficient number, since it is larger than the sum of its proper divisors (350331).

122143369 is an equidigital number, since it uses as much as digits as its factorization.

122143369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350330.

The product of its digits is 7776, while the sum is 31.

The square root of 122143369 is about 11051.8491213009. The cubic root of 122143369 is about 496.1617700414.

The spelling of 122143369 in words is "one hundred twenty-two million, one hundred forty-three thousand, three hundred sixty-nine".