163145450 has 24 divisors (see below), whose sum is σ = 326794188. Its totient is φ = 60238080.

The previous prime is 163145449. The next prime is 163145459. The reversal of 163145450 is 54541361.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 15547249 + 147598201 = 3943^2 + 12149^2 .

It is not an unprimeable number, because it can be changed into a prime (163145459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124847 + ... + 126146.

Almost surely, 2^163145450 is an apocalyptic number.

163145450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163145450 is an abundant number, since it is smaller than the sum of its proper divisors (163648738).

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

163145450 is a wasteful number, since it uses less digits than its factorization.

163145450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251018 (or 251013 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 163145450 is about 12772.8403262548. The cubic root of 163145450 is about 546.4179891317.

The spelling of 163145450 in words is "one hundred sixty-three million, one hundred forty-five thousand, four hundred fifty".