122700493 has 2 divisors, whose sum is σ = 122700494. Its totient is φ = 122700492.

The previous prime is 122700451. The next prime is 122700521. The reversal of 122700493 is 394007221.

It is an a-pointer prime, because the next prime (122700521) can be obtained adding 122700493 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90687529 + 32012964 = 9523^2 + 5658^2 .

It is an emirp because it is prime and its reverse (394007221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122700493 - 2²¹ = 120603341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122700293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61350246 + 61350247.

It is an arithmetic number, because the mean of its divisors is an integer number (61350247).

Almost surely, 2^122700493 is an apocalyptic number.

It is an amenable number.

122700493 is a deficient number, since it is larger than the sum of its proper divisors (1).

122700493 is an equidigital number, since it uses as much as digits as its factorization.

122700493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 122700493 is about 11077.0254581273. The cubic root of 122700493 is about 496.9149953064.

The spelling of 122700493 in words is "one hundred twenty-two million, seven hundred thousand, four hundred ninety-three".