42915601 has 3 divisors (see below), whose sum is σ = 42922153. Its totient is φ = 42909050.

The previous prime is 42915581. The next prime is 42915611. The reversal of 42915601 is 10651924.

The square root of 42915601 is 6551.

It is a perfect power (a square), and thus also a powerful number.

42915601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 42915601 - 2⁵ = 42915569 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 42915601.

It is not an unprimeable number, because it can be changed into a prime (42915611) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 3276 + ... + 9826.

Almost surely, 2^42915601 is an apocalyptic number.

42915601 is the 6551-st square number.

42915601 is the 3276-th centered octagonal number.

It is an amenable number.

42915601 is a deficient number, since it is larger than the sum of its proper divisors (6552).

42915601 is an frugal number, since it uses more digits than its factorization.

42915601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13102 (or 6551 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The cubic root of 42915601 is about 350.1104440568.

The spelling of 42915601 in words is "forty-two million, nine hundred fifteen thousand, six hundred one".