42235961 has 4 divisors (see below), whose sum is σ = 42744912. Its totient is φ = 41727012.

The previous prime is 42235957. The next prime is 42235979. The reversal of 42235961 is 16953224.

It is a happy number.

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 42235961 - 2² = 42235957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42235901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254351 + ... + 254516.

It is an arithmetic number, because the mean of its divisors is an integer number (10686228).

Almost surely, 2^42235961 is an apocalyptic number.

It is an amenable number.

42235961 is a deficient number, since it is larger than the sum of its proper divisors (508951).

42235961 is an equidigital number, since it uses as much as digits as its factorization.

42235961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508950.

The product of its digits is 12960, while the sum is 32.

The square root of 42235961 is about 6498.9199871979. The cubic root of 42235961 is about 348.2524069435.

The spelling of 42235961 in words is "forty-two million, two hundred thirty-five thousand, nine hundred sixty-one".