163420502 has 8 divisors (see below), whose sum is σ = 280149456. Its totient is φ = 70037352.

The previous prime is 163420489. The next prime is 163420519. The reversal of 163420502 is 205024361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5836433 + ... + 5836460.

It is an arithmetic number, because the mean of its divisors is an integer number (35018682).

Almost surely, 2^163420502 is an apocalyptic number.

163420502 is a deficient number, since it is larger than the sum of its proper divisors (116728954).

163420502 is a wasteful number, since it uses less digits than its factorization.

163420502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11672902.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 163420502 is about 12783.6028567849. The cubic root of 163420502 is about 546.7248910983.

Adding to 163420502 its reverse (205024361), we get a palindrome (368444863).

The spelling of 163420502 in words is "one hundred sixty-three million, four hundred twenty thousand, five hundred two".