122874778 has 8 divisors (see below), whose sum is σ = 198490068. Its totient is φ = 56711424.

The previous prime is 122874761. The next prime is 122874781. The reversal of 122874778 is 877478221.

It can be written as a sum of positive squares in 2 ways, for example, as 118222129 + 4652649 = 10873^2 + 2157^2 .

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

It is a super-2 number, since 2×122874778² = 30196422137098568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2362951 + ... + 2363002.

Almost surely, 2^122874778 is an apocalyptic number.

122874778 is a deficient number, since it is larger than the sum of its proper divisors (75615290).

122874778 is a wasteful number, since it uses less digits than its factorization.

122874778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4725968.

The product of its digits is 351232, while the sum is 46.

The square root of 122874778 is about 11084.8896250707. The cubic root of 122874778 is about 497.1501583320.

The spelling of 122874778 in words is "one hundred twenty-two million, eight hundred seventy-four thousand, seven hundred seventy-eight".