163130604 has 72 divisors (see below), whose sum is σ = 476865648. Its totient is φ = 43021440.

The previous prime is 163130603. The next prime is 163130609. The reversal of 163130604 is 406031361.

It is a super-2 number, since 2×163130604² = 53223187922809632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163130603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3027 + ... + 18314.

It is an arithmetic number, because the mean of its divisors is an integer number (6623134).

Almost surely, 2^163130604 is an apocalyptic number.

163130604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163130604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238432824).

163130604 is an abundant number, since it is smaller than the sum of its proper divisors (313735044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163130604 is a wasteful number, since it uses less digits than its factorization.

163130604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21375 (or 21366 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 163130604 is about 12772.2591580347. The cubic root of 163130604 is about 546.4014142133.

Adding to 163130604 its reverse (406031361), we get a palindrome (569161965).

The spelling of 163130604 in words is "one hundred sixty-three million, one hundred thirty thousand, six hundred four".