164240463 has 4 divisors (see below), whose sum is σ = 218987288. Its totient is φ = 109493640.

The previous prime is 164240441. The next prime is 164240473. The reversal of 164240463 is 364042461.

164240463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364042461 = 3 ⋅121347487.

It is not a de Polignac number, because 164240463 - 2⁵ = 164240431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164240463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164240423) 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, 27373408 + ... + 27373413.

It is an arithmetic number, because the mean of its divisors is an integer number (54746822).

Almost surely, 2^164240463 is an apocalyptic number.

164240463 is a deficient number, since it is larger than the sum of its proper divisors (54746825).

164240463 is an equidigital number, since it uses as much as digits as its factorization.

164240463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54746824.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 164240463 is about 12815.6335387682. The cubic root of 164240463 is about 547.6377618765.

The spelling of 164240463 in words is "one hundred sixty-four million, two hundred forty thousand, four hundred sixty-three".