663145134 has 8 divisors (see below), whose sum is σ = 1326290280. Its totient is φ = 221048376.

The previous prime is 663145123. The next prime is 663145139. The reversal of 663145134 is 431541366.

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

663145134 is an admirable number.

It is a super-2 number, since 2×663145134² = 879522937495755912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 663145095 and 663145104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663145139) 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, 55262089 + ... + 55262100.

It is an arithmetic number, because the mean of its divisors is an integer number (165786285).

Almost surely, 2^663145134 is an apocalyptic number.

663145134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

663145134 is a wasteful number, since it uses less digits than its factorization.

663145134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110524194.

The product of its digits is 25920, while the sum is 33.

The square root of 663145134 is about 25751.6044937010. The cubic root of 663145134 is about 872.0395773286.

The spelling of 663145134 in words is "six hundred sixty-three million, one hundred forty-five thousand, one hundred thirty-four".