122164861 has 24 divisors (see below), whose sum is σ = 155324544. Its totient is φ = 94011840.

The previous prime is 122164747. The next prime is 122164969. The reversal of 122164861 is 168461221.

It is not a de Polignac number, because 122164861 - 2⁹ = 122164349 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 (122161861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42376 + ... + 45166.

It is an arithmetic number, because the mean of its divisors is an integer number (6471856).

Almost surely, 2^122164861 is an apocalyptic number.

It is an amenable number.

122164861 is a deficient number, since it is larger than the sum of its proper divisors (33159683).

122164861 is a wasteful number, since it uses less digits than its factorization.

122164861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861 (or 2848 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 122164861 is about 11052.8214045103. The cubic root of 122164861 is about 496.1908694062.

The spelling of 122164861 in words is "one hundred twenty-two million, one hundred sixty-four thousand, eight hundred sixty-one".