122457238 has 8 divisors (see below), whose sum is σ = 183897000. Its totient is φ = 61158240.

The previous prime is 122457233. The next prime is 122457241. The reversal of 122457238 is 832754221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122457233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32988 + ... + 36511.

It is an arithmetic number, because the mean of its divisors is an integer number (22987125).

Almost surely, 2^122457238 is an apocalyptic number.

122457238 is a deficient number, since it is larger than the sum of its proper divisors (61439762).

122457238 is an equidigital number, since it uses as much as digits as its factorization.

122457238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70382.

The product of its digits is 26880, while the sum is 34.

The square root of 122457238 is about 11066.0398517265. The cubic root of 122457238 is about 496.5863983510.

The spelling of 122457238 in words is "one hundred twenty-two million, four hundred fifty-seven thousand, two hundred thirty-eight".