42235137 has 12 divisors (see below), whose sum is σ = 69721600. Its totient is φ = 24134328.

The previous prime is 42235133. The next prime is 42235139. The reversal of 42235137 is 73153224.

It is not a de Polignac number, because 42235137 - 2² = 42235133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42235137.

It is not an unprimeable number, because it can be changed into a prime (42235133) 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, 335137 + ... + 335262.

Almost surely, 2^42235137 is an apocalyptic number.

It is an amenable number.

42235137 is a deficient number, since it is larger than the sum of its proper divisors (27486463).

42235137 is a wasteful number, since it uses less digits than its factorization.

42235137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670412 (or 670409 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 42235137 is about 6498.8565917398. The cubic root of 42235137 is about 348.2501421921.

The spelling of 42235137 in words is "forty-two million, two hundred thirty-five thousand, one hundred thirty-seven".