122403144 has 32 divisors (see below), whose sum is σ = 306429120. Its totient is φ = 40744896.

The previous prime is 122403143. The next prime is 122403157. The reversal of 122403144 is 441304221.

It is a super-2 number, since 2×122403144² = 29965059322169472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122403144.

It is not an unprimeable number, because it can be changed into a prime (122403143) 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, 16654 + ... + 22850.

It is an arithmetic number, because the mean of its divisors is an integer number (9575910).

Almost surely, 2^122403144 is an apocalyptic number.

It is an amenable number.

122403144 is an abundant number, since it is smaller than the sum of its proper divisors (184025976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122403144 is a wasteful number, since it uses less digits than its factorization.

122403144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7029 (or 7025 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 122403144 is about 11063.5954372889. The cubic root of 122403144 is about 496.5132672417.

Adding to 122403144 its reverse (441304221), we get a palindrome (563707365).

The spelling of 122403144 in words is "one hundred twenty-two million, four hundred three thousand, one hundred forty-four".