164381463 has 6 divisors (see below), whose sum is σ = 237439904. Its totient is φ = 109587636.

The previous prime is 164381453. The next prime is 164381507. The reversal of 164381463 is 364183461.

It is a happy number.

164381463 is a `hidden beast` number, since 1 + 643 + 8 + 1 + 4 + 6 + 3 = 666.

It is not a de Polignac number, because 164381463 - 2⁵ = 164381431 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 (164381453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9132295 + ... + 9132312.

Almost surely, 2^164381463 is an apocalyptic number.

164381463 is a deficient number, since it is larger than the sum of its proper divisors (73058441).

164381463 is a wasteful number, since it uses less digits than its factorization.

164381463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18264613 (or 18264610 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 164381463 is about 12821.1334522342. The cubic root of 164381463 is about 547.7944322380.

The spelling of 164381463 in words is "one hundred sixty-four million, three hundred eighty-one thousand, four hundred sixty-three".