122700451 has 2 divisors, whose sum is σ = 122700452. Its totient is φ = 122700450.

The previous prime is 122700439. The next prime is 122700493. The reversal of 122700451 is 154007221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122700451 - 2¹⁹ = 122176163 is a prime.

It is not a weakly prime, because it can be changed into another prime (122700401) 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 as a sum of consecutive naturals, namely, 61350225 + 61350226.

It is an arithmetic number, because the mean of its divisors is an integer number (61350226).

Almost surely, 2^122700451 is an apocalyptic number.

122700451 is a deficient number, since it is larger than the sum of its proper divisors (1).

122700451 is an equidigital number, since it uses as much as digits as its factorization.

122700451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 122700451 is about 11077.0235623113. The cubic root of 122700451 is about 496.9149386089.

Adding to 122700451 its reverse (154007221), we get a palindrome (276707672).

The spelling of 122700451 in words is "one hundred twenty-two million, seven hundred thousand, four hundred fifty-one".