164268121 has 8 divisors (see below), whose sum is σ = 167663520. Its totient is φ = 160900608.

The previous prime is 164268119. The next prime is 164268133. The reversal of 164268121 is 121862461.

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

It is a cyclic number.

It is not a de Polignac number, because 164268121 - 2¹ = 164268119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164268421) 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, 5145 + ... + 18841.

It is an arithmetic number, because the mean of its divisors is an integer number (20957940).

Almost surely, 2^164268121 is an apocalyptic number.

It is an amenable number.

164268121 is a deficient number, since it is larger than the sum of its proper divisors (3395399).

164268121 is a wasteful number, since it uses less digits than its factorization.

164268121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13943.

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

The square root of 164268121 is about 12816.7125660210. The cubic root of 164268121 is about 547.6685007797.

The spelling of 164268121 in words is "one hundred sixty-four million, two hundred sixty-eight thousand, one hundred twenty-one".