122725742 has 8 divisors (see below), whose sum is σ = 188005536. Its totient is φ = 60057232.

The previous prime is 122725739. The next prime is 122725747. The reversal of 122725742 is 247527221.

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

It is a junction number, because it is equal to n+sod(n) for n = 122725699 and 122725708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122725747) 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, 652703 + ... + 652890.

It is an arithmetic number, because the mean of its divisors is an integer number (23500692).

Almost surely, 2^122725742 is an apocalyptic number.

122725742 is a deficient number, since it is larger than the sum of its proper divisors (65279794).

122725742 is a wasteful number, since it uses less digits than its factorization.

122725742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305642.

The product of its digits is 15680, while the sum is 32.

The square root of 122725742 is about 11078.1651007737. The cubic root of 122725742 is about 496.9490776096.

The spelling of 122725742 in words is "one hundred twenty-two million, seven hundred twenty-five thousand, seven hundred forty-two".