122743842 has 32 divisors (see below), whose sum is σ = 279925632. Its totient is φ = 35545344.

The previous prime is 122743793. The next prime is 122743843. The reversal of 122743842 is 248347221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (122743843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44958 + ... + 47609.

It is an arithmetic number, because the mean of its divisors is an integer number (8747676).

Almost surely, 2^122743842 is an apocalyptic number.

122743842 is an abundant number, since it is smaller than the sum of its proper divisors (157181790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122743842 is a wasteful number, since it uses less digits than its factorization.

122743842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92602.

The product of its digits is 21504, while the sum is 33.

The square root of 122743842 is about 11078.9819929450. The cubic root of 122743842 is about 496.9735069755.

The spelling of 122743842 in words is "one hundred twenty-two million, seven hundred forty-three thousand, eight hundred forty-two".