162645143 has 4 divisors (see below), whose sum is σ = 162798360. Its totient is φ = 162491928.

The previous prime is 162645107. The next prime is 162645169. The reversal of 162645143 is 341546261.

162645143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 162645143 - 2¹⁶ = 162579607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162645193) 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, 75005 + ... + 77142.

It is an arithmetic number, because the mean of its divisors is an integer number (40699590).

Almost surely, 2^162645143 is an apocalyptic number.

162645143 is a deficient number, since it is larger than the sum of its proper divisors (153217).

162645143 is a wasteful number, since it uses less digits than its factorization.

162645143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153216.

The product of its digits is 17280, while the sum is 32.

The square root of 162645143 is about 12753.2404901656. The cubic root of 162645143 is about 545.8588629643.

The spelling of 162645143 in words is "one hundred sixty-two million, six hundred forty-five thousand, one hundred forty-three".