122156773 has 8 divisors (see below), whose sum is σ = 123849216. Its totient is φ = 120474000.

The previous prime is 122156767. The next prime is 122156777. The reversal of 122156773 is 377651221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122156773 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 (122156777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25140 + ... + 29602.

It is an arithmetic number, because the mean of its divisors is an integer number (15481152).

Almost surely, 2^122156773 is an apocalyptic number.

It is an amenable number.

122156773 is a deficient number, since it is larger than the sum of its proper divisors (1692443).

122156773 is a wasteful number, since it uses less digits than its factorization.

122156773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4835.

The product of its digits is 17640, while the sum is 34.

The square root of 122156773 is about 11052.4555190238. The cubic root of 122156773 is about 496.1799189570.

The spelling of 122156773 in words is "one hundred twenty-two million, one hundred fifty-six thousand, seven hundred seventy-three".