122544901 has 8 divisors (see below), whose sum is σ = 124767000. Its totient is φ = 120341760.

The previous prime is 122544871. The next prime is 122544911. The reversal of 122544901 is 109445221.

It is a Cunningham number, because it is equal to 11070²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 14364100 + 108180801 = 3790^2 + 10401^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 122544901 - 2²¹ = 120447749 is a prime.

It is a super-2 number, since 2×122544901² = 30034505522199602, 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 122544901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122544911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8641 + ... + 17881.

It is an arithmetic number, because the mean of its divisors is an integer number (15595875).

Almost surely, 2^122544901 is an apocalyptic number.

It is an amenable number.

122544901 is a deficient number, since it is larger than the sum of its proper divisors (2222099).

122544901 is an equidigital number, since it uses as much as digits as its factorization.

122544901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9479.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 122544901 is about 11070.0000451671. Note that the first 4 decimals coincide. The cubic root of 122544901 is about 496.7048665622.

The spelling of 122544901 in words is "one hundred twenty-two million, five hundred forty-four thousand, nine hundred one".