42140001 has 16 divisors (see below), whose sum is σ = 57153600. Its totient is φ = 27614208.

The previous prime is 42139973. The next prime is 42140017. The reversal of 42140001 is 10004124.

It is not a de Polignac number, because 42140001 - 2²² = 37945697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42140201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51685 + ... + 52493.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^42140001 is an apocalyptic number.

It is an amenable number.

42140001 is a deficient number, since it is larger than the sum of its proper divisors (15013599).

42140001 is a wasteful number, since it uses less digits than its factorization.

42140001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 42140001 is about 6491.5330238704. The cubic root of 42140001 is about 347.9884640779.

Adding to 42140001 its reverse (10004124), we get a palindrome (52144125).

The spelling of 42140001 in words is "forty-two million, one hundred forty thousand, one".