202140346 has 4 divisors (see below), whose sum is σ = 303210522. Its totient is φ = 101070172.

The previous prime is 202140331. The next prime is 202140347. The reversal of 202140346 is 643041202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643041202 = 2 ⋅321520601.

It can be written as a sum of positive squares in only one way, i.e., 196308121 + 5832225 = 14011^2 + 2415^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (202140347) 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 as a sum of consecutive naturals, namely, 50535085 + ... + 50535088.

Almost surely, 2^202140346 is an apocalyptic number.

202140346 is a deficient number, since it is larger than the sum of its proper divisors (101070176).

202140346 is a wasteful number, since it uses less digits than its factorization.

202140346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101070175.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 202140346 is about 14217.6069013037. The cubic root of 202140346 is about 586.8822863735.

Adding to 202140346 its reverse (643041202), we get a palindrome (845181548).

The spelling of 202140346 in words is "two hundred two million, one hundred forty thousand, three hundred forty-six".