42155133 has 16 divisors (see below), whose sum is σ = 58630656. Its totient is φ = 26910720.

The previous prime is 42155131. The next prime is 42155137. The reversal of 42155133 is 33155124.

It is not a de Polignac number, because 42155133 - 2¹ = 42155131 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 (42155131) 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, 6685 + ... + 11357.

It is an arithmetic number, because the mean of its divisors is an integer number (3664416).

Almost surely, 2^42155133 is an apocalyptic number.

It is an amenable number.

42155133 is a deficient number, since it is larger than the sum of its proper divisors (16475523).

42155133 is a wasteful number, since it uses less digits than its factorization.

42155133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804.

The product of its digits is 1800, while the sum is 24.

The square root of 42155133 is about 6492.6984374757. The cubic root of 42155133 is about 348.0301120066.

Subtracting from 42155133 its reverse (33155124), we obtain a palindrome (9000009).

The spelling of 42155133 in words is "forty-two million, one hundred fifty-five thousand, one hundred thirty-three".