42030133 has 4 divisors (see below), whose sum is σ = 42562240. Its totient is φ = 41498028.

The previous prime is 42030127. The next prime is 42030143. The reversal of 42030133 is 33103024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42030133 - 2⁹ = 42029621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42030143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265935 + ... + 266092.

It is an arithmetic number, because the mean of its divisors is an integer number (10640560).

Almost surely, 2^42030133 is an apocalyptic number.

It is an amenable number.

42030133 is a deficient number, since it is larger than the sum of its proper divisors (532107).

42030133 is an equidigital number, since it uses as much as digits as its factorization.

42030133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532106.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 42030133 is about 6483.0650929942. The cubic root of 42030133 is about 347.6857740692.

Adding to 42030133 its reverse (33103024), we get a palindrome (75133157).

The spelling of 42030133 in words is "forty-two million, thirty thousand, one hundred thirty-three".