122673409 has 4 divisors (see below), whose sum is σ = 122698800. Its totient is φ = 122648020.

The previous prime is 122673407. The next prime is 122673413. The reversal of 122673409 is 904376221.

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: 904376221 = 7 ⋅129196603.

It is a cyclic number.

It is not a de Polignac number, because 122673409 - 2¹ = 122673407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122673407) 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, 2959 + ... + 15940.

It is an arithmetic number, because the mean of its divisors is an integer number (30674700).

Almost surely, 2^122673409 is an apocalyptic number.

It is an amenable number.

122673409 is a deficient number, since it is larger than the sum of its proper divisors (25391).

122673409 is an equidigital number, since it uses as much as digits as its factorization.

122673409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25390.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 122673409 is about 11075.8028602896. The cubic root of 122673409 is about 496.8784308348.

The spelling of 122673409 in words is "one hundred twenty-two million, six hundred seventy-three thousand, four hundred nine".