122290249 has 4 divisors (see below), whose sum is σ = 125272980. Its totient is φ = 119307520.

The previous prime is 122290229. The next prime is 122290253. The reversal of 122290249 is 942092221.

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 10036224 + 112254025 = 3168^2 + 10595^2 .

It is a cyclic number.

It is not a de Polignac number, because 122290249 - 2¹³ = 122282057 is a prime.

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 122290249.

It is not an unprimeable number, because it can be changed into a prime (122290229) 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, 1491304 + ... + 1491385.

It is an arithmetic number, because the mean of its divisors is an integer number (31318245).

Almost surely, 2^122290249 is an apocalyptic number.

It is an amenable number.

122290249 is a deficient number, since it is larger than the sum of its proper divisors (2982731).

122290249 is an equidigital number, since it uses as much as digits as its factorization.

122290249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982730.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 122290249 is about 11058.4921666564. The cubic root of 122290249 is about 496.3605720698.

The spelling of 122290249 in words is "one hundred twenty-two million, two hundred ninety thousand, two hundred forty-nine".