122551342 has 4 divisors (see below), whose sum is σ = 183827016. Its totient is φ = 61275670.

The previous prime is 122551327. The next prime is 122551343. The reversal of 122551342 is 243155221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122551343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30637834 + ... + 30637837.

It is an arithmetic number, because the mean of its divisors is an integer number (45956754).

Almost surely, 2^122551342 is an apocalyptic number.

122551342 is a deficient number, since it is larger than the sum of its proper divisors (61275674).

122551342 is an equidigital number, since it uses as much as digits as its factorization.

122551342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61275673.

The product of its digits is 2400, while the sum is 25.

The square root of 122551342 is about 11070.2909627525. The cubic root of 122551342 is about 496.7135687331.

The spelling of 122551342 in words is "one hundred twenty-two million, five hundred fifty-one thousand, three hundred forty-two".