122774451 has 4 divisors (see below), whose sum is σ = 163699272. Its totient is φ = 81849632.

The previous prime is 122774423. The next prime is 122774461. The reversal of 122774451 is 154477221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122774451 - 2²¹ = 120677299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122774401) 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, 20462406 + ... + 20462411.

It is an arithmetic number, because the mean of its divisors is an integer number (40924818).

Almost surely, 2^122774451 is an apocalyptic number.

122774451 is a deficient number, since it is larger than the sum of its proper divisors (40924821).

122774451 is an equidigital number, since it uses as much as digits as its factorization.

122774451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40924820.

The product of its digits is 15680, while the sum is 33.

The square root of 122774451 is about 11080.3633063181. The cubic root of 122774451 is about 497.0148141333.

The spelling of 122774451 in words is "one hundred twenty-two million, seven hundred seventy-four thousand, four hundred fifty-one".