202145061 has 8 divisors (see below), whose sum is σ = 269672704. Its totient is φ = 134690400.

The previous prime is 202145029. The next prime is 202145063. The reversal of 202145061 is 160541202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202145061 - 2⁵ = 202145029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202145063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11416 + ... + 23121.

It is an arithmetic number, because the mean of its divisors is an integer number (33709088).

Almost surely, 2^202145061 is an apocalyptic number.

It is an amenable number.

202145061 is a deficient number, since it is larger than the sum of its proper divisors (67527643).

202145061 is a wasteful number, since it uses less digits than its factorization.

202145061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36491.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 202145061 is about 14217.7727158652. The cubic root of 202145061 is about 586.8868494218.

Adding to 202145061 its reverse (160541202), we get a palindrome (362686263).

The spelling of 202145061 in words is "two hundred two million, one hundred forty-five thousand, sixty-one".