202986396145 has 8 divisors (see below), whose sum is σ = 262320881256. Its totient is φ = 149897646336.

The previous prime is 202986396143. The next prime is 202986396149. The reversal of 202986396145 is 541693689202.

It can be written as a sum of positive squares in 4 ways, for example, as 41218338529 + 161768057616 = 203023^2 + 402204^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 202986396145 - 2¹ = 202986396143 is a prime.

It is a super-2 number, since 2×202986396145² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202986396143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1561433752 + ... + 1561433881.

It is an arithmetic number, because the mean of its divisors is an integer number (32790110157).

Almost surely, 2^202986396145 is an apocalyptic number.

It is an amenable number.

202986396145 is a deficient number, since it is larger than the sum of its proper divisors (59334485111).

202986396145 is a wasteful number, since it uses less digits than its factorization.

202986396145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122867651.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 202986396145 in words is "two hundred two billion, nine hundred eighty-six million, three hundred ninety-six thousand, one hundred forty-five".