164211263 has 4 divisors (see below), whose sum is σ = 164316840. Its totient is φ = 164105688.

The previous prime is 164211221. The next prime is 164211277. The reversal of 164211263 is 362112461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362112461 = 17 ⋅21300733.

It is a cyclic number.

It is not a de Polignac number, because 164211263 - 2¹⁰ = 164210239 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 (164211163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50420 + ... + 53577.

It is an arithmetic number, because the mean of its divisors is an integer number (41079210).

Almost surely, 2^164211263 is an apocalyptic number.

164211263 is a deficient number, since it is larger than the sum of its proper divisors (105577).

164211263 is a wasteful number, since it uses less digits than its factorization.

164211263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105576.

The product of its digits is 1728, while the sum is 26.

The square root of 164211263 is about 12814.4942545541. The cubic root of 164211263 is about 547.6053054604.

The spelling of 164211263 in words is "one hundred sixty-four million, two hundred eleven thousand, two hundred sixty-three".