122877193 has 2 divisors, whose sum is σ = 122877194. Its totient is φ = 122877192.

The previous prime is 122877191. The next prime is 122877203. The reversal of 122877193 is 391778221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118984464 + 3892729 = 10908^2 + 1973^2 .

It is an emirp because it is prime and its reverse (391778221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122877193 - 2¹ = 122877191 is a prime.

Together with 122877191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122877191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61438596 + 61438597.

It is an arithmetic number, because the mean of its divisors is an integer number (61438597).

Almost surely, 2^122877193 is an apocalyptic number.

It is an amenable number.

122877193 is a deficient number, since it is larger than the sum of its proper divisors (1).

122877193 is an equidigital number, since it uses as much as digits as its factorization.

122877193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 40.

The square root of 122877193 is about 11084.9985566079. The cubic root of 122877193 is about 497.1534153328.

The spelling of 122877193 in words is "one hundred twenty-two million, eight hundred seventy-seven thousand, one hundred ninety-three".