163250143 has 4 divisors (see below), whose sum is σ = 186571600. Its totient is φ = 139928688.

The previous prime is 163250141. The next prime is 163250161. The reversal of 163250143 is 341052361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163250143 - 2¹ = 163250141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163250141) 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, 11660718 + ... + 11660731.

It is an arithmetic number, because the mean of its divisors is an integer number (46642900).

Almost surely, 2^163250143 is an apocalyptic number.

163250143 is a deficient number, since it is larger than the sum of its proper divisors (23321457).

163250143 is an equidigital number, since it uses as much as digits as its factorization.

163250143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23321456.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 163250143 is about 12776.9379352018. The cubic root of 163250143 is about 546.5348458102.

The spelling of 163250143 in words is "one hundred sixty-three million, two hundred fifty thousand, one hundred forty-three".