122749300 has 36 divisors (see below), whose sum is σ = 266881356. Its totient is φ = 49004800.

The previous prime is 122749283. The next prime is 122749307. The reversal of 122749300 is 3947221.

It can be written as a sum of positive squares in 6 ways, for example, as 22829284 + 99920016 = 4778^2 + 9996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122749307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75294 + ... + 76906.

It is an arithmetic number, because the mean of its divisors is an integer number (7413371).

Almost surely, 2^122749300 is an apocalyptic number.

122749300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122749300 is an abundant number, since it is smaller than the sum of its proper divisors (144132056).

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

122749300 is a wasteful number, since it uses less digits than its factorization.

122749300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388 (or 2381 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 122749300 is about 11079.2283124774. The cubic root of 122749300 is about 496.9808731052.

The spelling of 122749300 in words is "one hundred twenty-two million, seven hundred forty-nine thousand, three hundred".