42936145 has 32 divisors (see below), whose sum is σ = 61636608. Its totient is φ = 28099008.

The previous prime is 42936139. The next prime is 42936161. The reversal of 42936145 is 54163924.

It is a happy number.

42936145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42936145 - 2³ = 42936137 is a prime.

It is a super-2 number, since 2×42936145² = 3687025094922050, which contains 22 as substring.

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 42936145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70432 + ... + 71038.

It is an arithmetic number, because the mean of its divisors is an integer number (1926144).

Almost surely, 2^42936145 is an apocalyptic number.

It is an amenable number.

42936145 is a deficient number, since it is larger than the sum of its proper divisors (18700463).

42936145 is a wasteful number, since it uses less digits than its factorization.

42936145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709.

The product of its digits is 25920, while the sum is 34.

The square root of 42936145 is about 6552.5678172759. The cubic root of 42936145 is about 350.1663019218.

The spelling of 42936145 in words is "forty-two million, nine hundred thirty-six thousand, one hundred forty-five".