122609643 has 16 divisors (see below), whose sum is σ = 176336160. Its totient is φ = 75331584.

The previous prime is 122609569. The next prime is 122609647. The reversal of 122609643 is 346906221.

It is not a de Polignac number, because 122609643 - 2⁸ = 122609387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122609647) 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, 26443 + ... + 30731.

It is an arithmetic number, because the mean of its divisors is an integer number (11021010).

Almost surely, 2^122609643 is an apocalyptic number.

122609643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

122609643 is a deficient number, since it is larger than the sum of its proper divisors (53726517).

122609643 is a wasteful number, since it uses less digits than its factorization.

122609643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5038.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 122609643 is about 11072.9238686085. The cubic root of 122609643 is about 496.7923229552.

The spelling of 122609643 in words is "one hundred twenty-two million, six hundred nine thousand, six hundred forty-three".