202205901145 has 4 divisors (see below), whose sum is σ = 242647081380. Its totient is φ = 161764720912.

The previous prime is 202205901103. The next prime is 202205901173. The reversal of 202205901145 is 541109502202.

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 78237124681 + 123968776464 = 279709^2 + 352092^2 .

It is a cyclic number.

It is not a de Polignac number, because 202205901145 - 2¹⁷ = 202205770073 is a prime.

It is a super-2 number, since 2×202205901145² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20220590110 + ... + 20220590119.

It is an arithmetic number, because the mean of its divisors is an integer number (60661770345).

Almost surely, 2^202205901145 is an apocalyptic number.

It is an amenable number.

202205901145 is a deficient number, since it is larger than the sum of its proper divisors (40441180235).

202205901145 is an equidigital number, since it uses as much as digits as its factorization.

202205901145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40441180234.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 202205901145 in words is "two hundred two billion, two hundred five million, nine hundred one thousand, one hundred forty-five".