122042743 has 4 divisors (see below), whose sum is σ = 123227728. Its totient is φ = 120857760.

The previous prime is 122042717. The next prime is 122042747. The reversal of 122042743 is 347240221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122042743 - 2²⁵ = 88488311 is a prime.

It is a super-2 number, since 2×122042743² = 29788862237928098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122042747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592338 + ... + 592543.

It is an arithmetic number, because the mean of its divisors is an integer number (30806932).

Almost surely, 2^122042743 is an apocalyptic number.

122042743 is a deficient number, since it is larger than the sum of its proper divisors (1184985).

122042743 is a wasteful number, since it uses less digits than its factorization.

122042743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184984.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 122042743 is about 11047.2957324406. The cubic root of 122042743 is about 496.0254807734.

Adding to 122042743 its reverse (347240221), we get a palindrome (469282964).

The spelling of 122042743 in words is "one hundred twenty-two million, forty-two thousand, seven hundred forty-three".