42131005 has 16 divisors (see below), whose sum is σ = 57962880. Its totient is φ = 28798272.

The previous prime is 42130993. The next prime is 42131021. The reversal of 42131005 is 50013124.

It is a cyclic number.

It is not a de Polignac number, because 42131005 - 2¹³ = 42122813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42131005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10411 + ... + 13879.

It is an arithmetic number, because the mean of its divisors is an integer number (3622680).

Almost surely, 2^42131005 is an apocalyptic number.

It is an amenable number.

42131005 is a deficient number, since it is larger than the sum of its proper divisors (15831875).

42131005 is a wasteful number, since it uses less digits than its factorization.

42131005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 42131005 is about 6490.8400843034. The cubic root of 42131005 is about 347.9636995870.

Adding to 42131005 its reverse (50013124), we get a palindrome (92144129).

The spelling of 42131005 in words is "forty-two million, one hundred thirty-one thousand, five".