122643741 has 16 divisors (see below), whose sum is σ = 179097408. Its totient is φ = 74035200.

The previous prime is 122643739. The next prime is 122643757. The reversal of 122643741 is 147346221.

It is not a de Polignac number, because 122643741 - 2¹ = 122643739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122643699 and 122643708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122643791) 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, 1251 + ... + 15711.

It is an arithmetic number, because the mean of its divisors is an integer number (11193588).

Almost surely, 2^122643741 is an apocalyptic number.

122643741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122643741 is a deficient number, since it is larger than the sum of its proper divisors (56453667).

122643741 is a wasteful number, since it uses less digits than its factorization.

122643741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14732.

The product of its digits is 8064, while the sum is 30.

The square root of 122643741 is about 11074.4634633015. The cubic root of 122643741 is about 496.8383716838.

Adding to 122643741 its reverse (147346221), we get a palindrome (269989962).

The spelling of 122643741 in words is "one hundred twenty-two million, six hundred forty-three thousand, seven hundred forty-one".