122678351 has 2 divisors, whose sum is σ = 122678352. Its totient is φ = 122678350.

The previous prime is 122678333. The next prime is 122678357. The reversal of 122678351 is 153876221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122678351 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122678357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61339175 + 61339176.

It is an arithmetic number, because the mean of its divisors is an integer number (61339176).

Almost surely, 2^122678351 is an apocalyptic number.

122678351 is a deficient number, since it is larger than the sum of its proper divisors (1).

122678351 is an equidigital number, since it uses as much as digits as its factorization.

122678351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 122678351 is about 11076.0259569938. The cubic root of 122678351 is about 496.8851031317.

The spelling of 122678351 in words is "one hundred twenty-two million, six hundred seventy-eight thousand, three hundred fifty-one".