202140187 has 2 divisors, whose sum is σ = 202140188. Its totient is φ = 202140186.

The previous prime is 202140157. The next prime is 202140193. The reversal of 202140187 is 781041202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202140187 - 2¹⁹ = 201615899 is a prime.

It is not a weakly prime, because it can be changed into another prime (202140137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101070093 + 101070094.

It is an arithmetic number, because the mean of its divisors is an integer number (101070094).

Almost surely, 2^202140187 is an apocalyptic number.

202140187 is a deficient number, since it is larger than the sum of its proper divisors (1).

202140187 is an equidigital number, since it uses as much as digits as its factorization.

202140187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 202140187 is about 14217.6013096443. The cubic root of 202140187 is about 586.8821324964.

Adding to 202140187 its reverse (781041202), we get a palindrome (983181389).

The spelling of 202140187 in words is "two hundred two million, one hundred forty thousand, one hundred eighty-seven".