122550451 has 2 divisors, whose sum is σ = 122550452. Its totient is φ = 122550450.

The previous prime is 122550443. The next prime is 122550487. The reversal of 122550451 is 154055221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122550451 - 2³ = 122550443 is a prime.

It is a super-2 number, since 2×122550451² = 30037226080606802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122550431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61275225 + 61275226.

It is an arithmetic number, because the mean of its divisors is an integer number (61275226).

Almost surely, 2^122550451 is an apocalyptic number.

122550451 is a deficient number, since it is larger than the sum of its proper divisors (1).

122550451 is an equidigital number, since it uses as much as digits as its factorization.

122550451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 122550451 is about 11070.2507198347. The cubic root of 122550451 is about 496.7123649577.

The spelling of 122550451 in words is "one hundred twenty-two million, five hundred fifty thousand, four hundred fifty-one".