122916569 has 4 divisors (see below), whose sum is σ = 123884544. Its totient is φ = 121948596.

The previous prime is 122916559. The next prime is 122916589. The reversal of 122916569 is 965619221.

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: 965619221 = 7 ⋅137945603.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122916569 is a prime.

It is a super-2 number, since 2×122916569² = 30216965869463522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122916559) 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, 483797 + ... + 484050.

It is an arithmetic number, because the mean of its divisors is an integer number (30971136).

Almost surely, 2^122916569 is an apocalyptic number.

It is an amenable number.

122916569 is a deficient number, since it is larger than the sum of its proper divisors (967975).

122916569 is an equidigital number, since it uses as much as digits as its factorization.

122916569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967974.

The product of its digits is 58320, while the sum is 41.

The square root of 122916569 is about 11086.7745083951. The cubic root of 122916569 is about 497.2065139368.

The spelling of 122916569 in words is "one hundred twenty-two million, nine hundred sixteen thousand, five hundred sixty-nine".