42115333 has 4 divisors (see below), whose sum is σ = 45354988. Its totient is φ = 38875680.

The previous prime is 42115331. The next prime is 42115349. The reversal of 42115333 is 33351124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2965284 + 39150049 = 1722^2 + 6257^2 .

It is a cyclic number.

It is not a de Polignac number, because 42115333 - 2¹ = 42115331 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 (42115331) 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, 1619808 + ... + 1619833.

It is an arithmetic number, because the mean of its divisors is an integer number (11338747).

Almost surely, 2^42115333 is an apocalyptic number.

It is an amenable number.

42115333 is a deficient number, since it is larger than the sum of its proper divisors (3239655).

42115333 is a wasteful number, since it uses less digits than its factorization.

42115333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239654.

The product of its digits is 1080, while the sum is 22.

The square root of 42115333 is about 6489.6327322892. The cubic root of 42115333 is about 347.9205487577.

Adding to 42115333 its reverse (33351124), we get a palindrome (75466457).

The spelling of 42115333 in words is "forty-two million, one hundred fifteen thousand, three hundred thirty-three".