164603455 has 4 divisors (see below), whose sum is σ = 197524152. Its totient is φ = 131682760.

The previous prime is 164603419. The next prime is 164603473. The reversal of 164603455 is 554306461.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 164603455 - 2¹⁷ = 164472383 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 164603455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16460341 + ... + 16460350.

It is an arithmetic number, because the mean of its divisors is an integer number (49381038).

Almost surely, 2^164603455 is an apocalyptic number.

164603455 is a deficient number, since it is larger than the sum of its proper divisors (32920697).

164603455 is an equidigital number, since it uses as much as digits as its factorization.

164603455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32920696.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 164603455 is about 12829.7878002717. The cubic root of 164603455 is about 548.0409143711.

It can be divided in two parts, 1646034 and 55, that added together give a square (1646089 = 1283²).

The spelling of 164603455 in words is "one hundred sixty-four million, six hundred three thousand, four hundred fifty-five".