42201145 has 16 divisors (see below), whose sum is σ = 58076928. Its totient is φ = 28837440.

The previous prime is 42201139. The next prime is 42201151. The reversal of 42201145 is 54110224.

It is an interprime number because it is at equal distance from previous prime (42201139) and next prime (42201151).

It is a de Polignac number, because none of the positive numbers 2^k-42201145 is a prime.

It is a super-2 number, since 2×42201145² = 3561873278622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8947 + ... + 12823.

It is an arithmetic number, because the mean of its divisors is an integer number (3629808).

Almost surely, 2^42201145 is an apocalyptic number.

It is an amenable number.

42201145 is a deficient number, since it is larger than the sum of its proper divisors (15875783).

42201145 is a wasteful number, since it uses less digits than its factorization.

42201145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 42201145 is about 6496.2408360528. The cubic root of 42201145 is about 348.1566900188.

Adding to 42201145 its reverse (54110224), we get a palindrome (96311369).

The spelling of 42201145 in words is "forty-two million, two hundred one thousand, one hundred forty-five".