164442003 has 16 divisors (see below), whose sum is σ = 253259136. Its totient is φ = 93799040.

The previous prime is 164442001. The next prime is 164442041. The reversal of 164442003 is 300244461.

It is a cyclic number.

It is not a de Polignac number, because 164442003 - 2¹ = 164442001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164442001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146001 + ... + 147122.

It is an arithmetic number, because the mean of its divisors is an integer number (15828696).

Almost surely, 2^164442003 is an apocalyptic number.

164442003 is a deficient number, since it is larger than the sum of its proper divisors (88817133).

164442003 is a wasteful number, since it uses less digits than its factorization.

164442003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293154.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 164442003 is about 12823.4941806046. The cubic root of 164442003 is about 547.8616730000.

Adding to 164442003 its reverse (300244461), we get a palindrome (464686464).

The spelling of 164442003 in words is "one hundred sixty-four million, four hundred forty-two thousand, three".