42140145442501 has 16 divisors (see below), whose sum is σ = 45072860367600. Its totient is φ = 39259864194048.

The previous prime is 42140145442463. The next prime is 42140145442567. The reversal of 42140145442501 is 10524454104124.

It can be written as a sum of positive squares in 8 ways, for example, as 19516338352900 + 22623807089601 = 4417730^2 + 4756449^2 .

It is a cyclic number.

It is not a de Polignac number, because 42140145442501 - 2¹¹ = 42140145440453 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 (42140145442001) 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, 30611466 + ... + 31958443.

It is an arithmetic number, because the mean of its divisors is an integer number (2817053772975).

Almost surely, 2^{42140145442501} is an apocalyptic number.

It is an amenable number.

42140145442501 is a deficient number, since it is larger than the sum of its proper divisors (2932714925099).

42140145442501 is a wasteful number, since it uses less digits than its factorization.

42140145442501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62570328.

The product of its (nonzero) digits is 102400, while the sum is 37.

Adding to 42140145442501 its reverse (10524454104124), we get a palindrome (52664599546625).

The spelling of 42140145442501 in words is "forty-two trillion, one hundred forty billion, one hundred forty-five million, four hundred forty-two thousand, five hundred one".