163378357 has 4 divisors (see below), whose sum is σ = 163849536. Its totient is φ = 162907180.

The previous prime is 163378343. The next prime is 163378393. The reversal of 163378357 is 753873361.

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.

It is a cyclic number.

It is not a de Polignac number, because 163378357 - 2²³ = 154989749 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 (163378337) 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, 235069 + ... + 235762.

It is an arithmetic number, because the mean of its divisors is an integer number (40962384).

Almost surely, 2^163378357 is an apocalyptic number.

It is an amenable number.

163378357 is a deficient number, since it is larger than the sum of its proper divisors (471179).

163378357 is an equidigital number, since it uses as much as digits as its factorization.

163378357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471178.

The product of its digits is 317520, while the sum is 43.

The square root of 163378357 is about 12781.9543497855. The cubic root of 163378357 is about 546.6778882206.

The spelling of 163378357 in words is "one hundred sixty-three million, three hundred seventy-eight thousand, three hundred fifty-seven".