42201045 has 12 divisors (see below), whose sum is σ = 73148556. Its totient is φ = 22507200.

The previous prime is 42201043. The next prime is 42201059. The reversal of 42201045 is 54010224.

It can be written as a sum of positive squares in 2 ways, for example, as 18610596 + 23590449 = 4314^2 + 4857^2 .

It is not a de Polignac number, because 42201045 - 2¹ = 42201043 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42201043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468856 + ... + 468945.

It is an arithmetic number, because the mean of its divisors is an integer number (6095713).

Almost surely, 2^42201045 is an apocalyptic number.

42201045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42201045 is a deficient number, since it is larger than the sum of its proper divisors (30947511).

42201045 is a wasteful number, since it uses less digits than its factorization.

42201045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937812 (or 937809 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 42201045 is about 6496.2331392893. The cubic root of 42201045 is about 348.1564150208.

Adding to 42201045 its reverse (54010224), we get a palindrome (96211269).

The spelling of 42201045 in words is "forty-two million, two hundred one thousand, forty-five".