202011045 has 16 divisors (see below), whose sum is σ = 323714112. Its totient is φ = 107573760.

The previous prime is 202011041. The next prime is 202011053. The reversal of 202011045 is 540110202.

It is not a de Polignac number, because 202011045 - 2² = 202011041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90 + ... + 20100.

It is an arithmetic number, because the mean of its divisors is an integer number (20232132).

Almost surely, 2^202011045 is an apocalyptic number.

It is an amenable number.

202011045 is a deficient number, since it is larger than the sum of its proper divisors (121703067).

202011045 is a wasteful number, since it uses less digits than its factorization.

202011045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20692.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 202011045 is about 14213.0589599847. The cubic root of 202011045 is about 586.7571247324.

Adding to 202011045 its reverse (540110202), we get a palindrome (742121247).

The spelling of 202011045 in words is "two hundred two million, eleven thousand, forty-five".