122877401 has 4 divisors (see below), whose sum is σ = 123077172. Its totient is φ = 122677632.

The previous prime is 122877383. The next prime is 122877421. The reversal of 122877401 is 104778221.

It is a happy number.

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 42237001 + 80640400 = 6499^2 + 8980^2 .

It is a cyclic number.

It is not a de Polignac number, because 122877401 - 2¹⁴ = 122861017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122877421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98960 + ... + 100193.

It is an arithmetic number, because the mean of its divisors is an integer number (30769293).

Almost surely, 2^122877401 is an apocalyptic number.

It is an amenable number.

122877401 is a deficient number, since it is larger than the sum of its proper divisors (199771).

122877401 is an equidigital number, since it uses as much as digits as its factorization.

122877401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199770.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 122877401 is about 11085.0079386530. The cubic root of 122877401 is about 497.1536958510.

The spelling of 122877401 in words is "one hundred twenty-two million, eight hundred seventy-seven thousand, four hundred one".