163801045 has 4 divisors (see below), whose sum is σ = 196561260. Its totient is φ = 131040832.

The previous prime is 163801039. The next prime is 163801073. The reversal of 163801045 is 540108361.

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

It can be written as a sum of positive squares in 2 ways, for example, as 117029124 + 46771921 = 10818^2 + 6839^2 .

It is a cyclic number.

It is not a de Polignac number, because 163801045 - 2⁵ = 163801013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16380100 + ... + 16380109.

It is an arithmetic number, because the mean of its divisors is an integer number (49140315).

Almost surely, 2^163801045 is an apocalyptic number.

It is an amenable number.

163801045 is a deficient number, since it is larger than the sum of its proper divisors (32760215).

163801045 is an equidigital number, since it uses as much as digits as its factorization.

163801045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32760214.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 163801045 is about 12798.4782298522. The cubic root of 163801045 is about 547.1489322380.

The spelling of 163801045 in words is "one hundred sixty-three million, eight hundred one thousand, forty-five".