163460819 has 4 divisors (see below), whose sum is σ = 172064040. Its totient is φ = 154857600.

The previous prime is 163460779. The next prime is 163460827. The reversal of 163460819 is 918064361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 918064361 = 3989 ⋅230149.

It is not a de Polignac number, because 163460819 - 2¹⁶ = 163395283 is a prime.

It is a super-2 number, since 2×163460819² = 53438878696301522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163460879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4301582 + ... + 4301619.

It is an arithmetic number, because the mean of its divisors is an integer number (43016010).

Almost surely, 2^163460819 is an apocalyptic number.

163460819 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

163460819 is a deficient number, since it is larger than the sum of its proper divisors (8603221).

163460819 is an equidigital number, since it uses as much as digits as its factorization.

163460819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8603220.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 163460819 is about 12785.1796624060. The cubic root of 163460819 is about 546.7698477077.

The spelling of 163460819 in words is "one hundred sixty-three million, four hundred sixty thousand, eight hundred nineteen".