164121355 has 8 divisors (see below), whose sum is σ = 197340192. Its totient is φ = 131034048.

The previous prime is 164121343. The next prime is 164121367. The reversal of 164121355 is 553121461.

It is an interprime number because it is at equal distance from previous prime (164121343) and next prime (164121367).

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 164121355 - 2²⁵ = 130566923 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30114 + ... + 35143.

It is an arithmetic number, because the mean of its divisors is an integer number (24667524).

Almost surely, 2^164121355 is an apocalyptic number.

164121355 is a deficient number, since it is larger than the sum of its proper divisors (33218837).

164121355 is an equidigital number, since it uses as much as digits as its factorization.

164121355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65765.

The product of its digits is 3600, while the sum is 28.

The square root of 164121355 is about 12810.9857153929. The cubic root of 164121355 is about 547.5053466531.

The spelling of 164121355 in words is "one hundred sixty-four million, one hundred twenty-one thousand, three hundred fifty-five".