202371145 has 8 divisors (see below), whose sum is σ = 257130504. Its totient is φ = 152373504.

The previous prime is 202371139. The next prime is 202371151. The reversal of 202371145 is 541173202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (202371139) and next prime (202371151).

It can be written as a sum of positive squares in 4 ways, for example, as 10936249 + 191434896 = 3307^2 + 13836^2 .

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 202371145 - 2¹⁵ = 202338377 is a prime.

It is a super-2 number, since 2×202371145² = 81908160657222050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1190334 + ... + 1190503.

It is an arithmetic number, because the mean of its divisors is an integer number (32141313).

Almost surely, 2^202371145 is an apocalyptic number.

It is an amenable number.

202371145 is a deficient number, since it is larger than the sum of its proper divisors (54759359).

202371145 is a wasteful number, since it uses less digits than its factorization.

202371145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380859.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 202371145 is about 14225.7212470932. The cubic root of 202371145 is about 587.1055641247.

The spelling of 202371145 in words is "two hundred two million, three hundred seventy-one thousand, one hundred forty-five".