122139073 has 4 divisors (see below), whose sum is σ = 139587520. Its totient is φ = 104690628.

The previous prime is 122139071. The next prime is 122139077. The reversal of 122139073 is 370931221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 370931221 = 1693 ⋅219097.

It is not a de Polignac number, because 122139073 - 2¹ = 122139071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122139071) 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, 8724213 + ... + 8724226.

It is an arithmetic number, because the mean of its divisors is an integer number (34896880).

Almost surely, 2^122139073 is an apocalyptic number.

It is an amenable number.

122139073 is a deficient number, since it is larger than the sum of its proper divisors (17448447).

122139073 is an equidigital number, since it uses as much as digits as its factorization.

122139073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17448446.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 122139073 is about 11051.6547629755. The cubic root of 122139073 is about 496.1559530085.

The spelling of 122139073 in words is "one hundred twenty-two million, one hundred thirty-nine thousand, seventy-three".