122903889 has 4 divisors (see below), whose sum is σ = 163871856. Its totient is φ = 81935924.

The previous prime is 122903861. The next prime is 122903909. The reversal of 122903889 is 988309221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122903889 - 2⁸ = 122903633 is a prime.

It is a super-4 number, since 4×122903889⁴ (a number of 33 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122903889.

It is not an unprimeable number, because it can be changed into a prime (122903819) 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, 20483979 + ... + 20483984.

It is an arithmetic number, because the mean of its divisors is an integer number (40967964).

Almost surely, 2^122903889 is an apocalyptic number.

It is an amenable number.

122903889 is a deficient number, since it is larger than the sum of its proper divisors (40967967).

122903889 is an equidigital number, since it uses as much as digits as its factorization.

122903889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40967966.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 122903889 is about 11086.2026411211. The cubic root of 122903889 is about 497.1894161729.

The spelling of 122903889 in words is "one hundred twenty-two million, nine hundred three thousand, eight hundred eighty-nine".