163464257 has 4 divisors (see below), whose sum is σ = 178324656. Its totient is φ = 148603860.

The previous prime is 163464251. The next prime is 163464263. The reversal of 163464257 is 752464361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 752464361 = 11 ⋅68405851.

It is an interprime number because it is at equal distance from previous prime (163464251) and next prime (163464263).

It is a cyclic number.

It is not a de Polignac number, because 163464257 - 2¹⁰ = 163463233 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 163464257.

It is not an unprimeable number, because it can be changed into a prime (163464251) 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, 7430183 + ... + 7430204.

It is an arithmetic number, because the mean of its divisors is an integer number (44581164).

Almost surely, 2^163464257 is an apocalyptic number.

It is an amenable number.

163464257 is a deficient number, since it is larger than the sum of its proper divisors (14860399).

163464257 is a wasteful number, since it uses less digits than its factorization.

163464257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14860398.

The product of its digits is 120960, while the sum is 38.

The square root of 163464257 is about 12785.3141142484. The cubic root of 163464257 is about 546.7736810046.

The spelling of 163464257 in words is "one hundred sixty-three million, four hundred sixty-four thousand, two hundred fifty-seven".