42149215 has 8 divisors (see below), whose sum is σ = 50614128. Its totient is φ = 33696000.

The previous prime is 42149207. The next prime is 42149227. The reversal of 42149215 is 51294124.

42149215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42149215 - 2³ = 42149207 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11340 + ... + 14590.

It is an arithmetic number, because the mean of its divisors is an integer number (6326766).

Almost surely, 2^42149215 is an apocalyptic number.

42149215 is a deficient number, since it is larger than the sum of its proper divisors (8464913).

42149215 is a wasteful number, since it uses less digits than its factorization.

42149215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849.

The product of its digits is 2880, while the sum is 28.

The square root of 42149215 is about 6492.2426787667. The cubic root of 42149215 is about 348.0138250332.

The spelling of 42149215 in words is "forty-two million, one hundred forty-nine thousand, two hundred fifteen".