122963309 has 4 divisors (see below), whose sum is σ = 140529504. Its totient is φ = 105397116.

The previous prime is 122963297. The next prime is 122963341. The reversal of 122963309 is 903369221.

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.

It is a cyclic number.

It is not a de Polignac number, because 122963309 - 2²⁰ = 121914733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122963389) 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, 8783087 + ... + 8783100.

It is an arithmetic number, because the mean of its divisors is an integer number (35132376).

Almost surely, 2^122963309 is an apocalyptic number.

It is an amenable number.

122963309 is a deficient number, since it is larger than the sum of its proper divisors (17566195).

122963309 is an equidigital number, since it uses as much as digits as its factorization.

122963309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17566194.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 122963309 is about 11088.8822250036. The cubic root of 122963309 is about 497.2695281900.

The spelling of 122963309 in words is "one hundred twenty-two million, nine hundred sixty-three thousand, three hundred nine".