201573042 has 32 divisors (see below), whose sum is σ = 441172224. Its totient is φ = 60891600.

The previous prime is 201573019. The next prime is 201573059. The reversal of 201573042 is 240375102.

It is a super-2 number, since 2×201573042² = 81263382522267528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17233 + ... + 26459.

It is an arithmetic number, because the mean of its divisors is an integer number (13786632).

Almost surely, 2^201573042 is an apocalyptic number.

201573042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201573042 is an abundant number, since it is smaller than the sum of its proper divisors (239599182).

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

201573042 is a wasteful number, since it uses less digits than its factorization.

201573042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9574.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 201573042 is about 14197.6421281845. The cubic root of 201573042 is about 586.3327463697.

It can be divided in two parts, 2015 and 73042, that added together give a palindrome (75057).

The spelling of 201573042 in words is "two hundred one million, five hundred seventy-three thousand, forty-two".