202105742 has 8 divisors (see below), whose sum is σ = 303417576. Its totient is φ = 100966552.

The previous prime is 202105723. The next prime is 202105751. The reversal of 202105742 is 247501202.

It is a happy number.

202105742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 40193 + ... + 44940.

It is an arithmetic number, because the mean of its divisors is an integer number (37927197).

Almost surely, 2^202105742 is an apocalyptic number.

202105742 is a deficient number, since it is larger than the sum of its proper divisors (101311834).

202105742 is a wasteful number, since it uses less digits than its factorization.

202105742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86322.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 202105742 is about 14216.3899074273. The cubic root of 202105742 is about 586.8487953956.

Adding to 202105742 its reverse (247501202), we get a palindrome (449606944).

It can be divided in two parts, 20210 and 5742, that added together give a palindrome (25952).

The spelling of 202105742 in words is "two hundred two million, one hundred five thousand, seven hundred forty-two".