42154559 has 8 divisors (see below), whose sum is σ = 44436480. Its totient is φ = 39879000.

The previous prime is 42154547. The next prime is 42154573. The reversal of 42154559 is 95545124.

It is a happy number.

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 42154559 - 2⁸ = 42154303 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 (42154529) 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, 18914 + ... + 21024.

It is an arithmetic number, because the mean of its divisors is an integer number (5554560).

Almost surely, 2^42154559 is an apocalyptic number.

42154559 is a deficient number, since it is larger than the sum of its proper divisors (2281921).

42154559 is a wasteful number, since it uses less digits than its factorization.

42154559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its digits is 36000, while the sum is 35.

The square root of 42154559 is about 6492.6542338246. The cubic root of 42154559 is about 348.0285323635.

The spelling of 42154559 in words is "forty-two million, one hundred fifty-four thousand, five hundred fifty-nine".