42902543 has 8 divisors (see below), whose sum is σ = 46892160. Its totient is φ = 39075840.

The previous prime is 42902537. The next prime is 42902569. The reversal of 42902543 is 34520924.

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

It is a cyclic number.

It is not a de Polignac number, because 42902543 - 2⁸ = 42902287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42902533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40178 + ... + 41231.

It is an arithmetic number, because the mean of its divisors is an integer number (5861520).

Almost surely, 2^42902543 is an apocalyptic number.

42902543 is a deficient number, since it is larger than the sum of its proper divisors (3989617).

42902543 is a wasteful number, since it uses less digits than its factorization.

42902543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81457.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 42902543 is about 6550.0032824419. The cubic root of 42902543 is about 350.0749308958.

The spelling of 42902543 in words is "forty-two million, nine hundred two thousand, five hundred forty-three".