122774450 has 18 divisors (see below), whose sum is σ = 228506301. Its totient is φ = 49078440.

The previous prime is 122774423. The next prime is 122774461. The reversal of 122774450 is 54477221.

It can be written as a sum of positive squares in 2 ways, for example, as 120318961 + 2455489 = 10969^2 + 1567^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7835.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 77567 + ... + 79133.

Almost surely, 2^122774450 is an apocalyptic number.

122774450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122774450 is a deficient number, since it is larger than the sum of its proper divisors (105731851).

122774450 is an frugal number, since it uses more digits than its factorization.

122774450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 122774450 is about 11080.3632611932. The cubic root of 122774450 is about 497.0148127839.

Multiplying 122774450 by its sum of digits (32), we get a square (3928782400 = 62680²).

The spelling of 122774450 in words is "one hundred twenty-two million, seven hundred seventy-four thousand, four hundred fifty".