122164521 has 8 divisors (see below), whose sum is σ = 168140544. Its totient is φ = 78815760.

The previous prime is 122164513. The next prime is 122164531. The reversal of 122164521 is 125461221.

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

It is not a de Polignac number, because 122164521 - 2³ = 122164513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122164491 and 122164500.

It is not an unprimeable number, because it can be changed into a prime (122164531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656706 + ... + 656891.

It is an arithmetic number, because the mean of its divisors is an integer number (21017568).

Almost surely, 2^122164521 is an apocalyptic number.

It is an amenable number.

122164521 is a deficient number, since it is larger than the sum of its proper divisors (45976023).

122164521 is a wasteful number, since it uses less digits than its factorization.

122164521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313631.

The product of its digits is 960, while the sum is 24.

The square root of 122164521 is about 11052.8060238113. The cubic root of 122164521 is about 496.1904090855.

The spelling of 122164521 in words is "one hundred twenty-two million, one hundred sixty-four thousand, five hundred twenty-one".