202289137 has 4 divisors (see below), whose sum is σ = 214188516. Its totient is φ = 190389760.

The previous prime is 202289099. The next prime is 202289149. The reversal of 202289137 is 731982202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152176896 + 50112241 = 12336^2 + 7079^2 .

It is a cyclic number.

It is not a de Polignac number, because 202289137 - 2¹¹ = 202287089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202281137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5949664 + ... + 5949697.

It is an arithmetic number, because the mean of its divisors is an integer number (53547129).

Almost surely, 2^202289137 is an apocalyptic number.

It is an amenable number.

202289137 is a deficient number, since it is larger than the sum of its proper divisors (11899379).

202289137 is a wasteful number, since it uses less digits than its factorization.

202289137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11899378.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 202289137 is about 14222.8385704120. The cubic root of 202289137 is about 587.0262480439.

The spelling of 202289137 in words is "two hundred two million, two hundred eighty-nine thousand, one hundred thirty-seven".