202137030290 has 32 divisors (see below), whose sum is σ = 391934093040. Its totient is φ = 74616309504.

The previous prime is 202137030257. The next prime is 202137030331. The reversal of 202137030290 is 92030731202.

It can be written as a sum of positive squares in 8 ways, for example, as 37178395489 + 164958634801 = 192817^2 + 406151^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323672 + ... + 713468.

Almost surely, 2^202137030290 is an apocalyptic number.

202137030290 is a deficient number, since it is larger than the sum of its proper divisors (189797062750).

202137030290 is a wasteful number, since it uses less digits than its factorization.

202137030290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393806.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 202137030290 its reverse (92030731202), we get a palindrome (294167761492).

The spelling of 202137030290 in words is "two hundred two billion, one hundred thirty-seven million, thirty thousand, two hundred ninety".