140110521 has 8 divisors (see below), whose sum is σ = 186868704. Its totient is φ = 93379680.

The previous prime is 140110517. The next prime is 140110543. The reversal of 140110521 is 125011041.

It is a happy number.

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

It is not a de Polignac number, because 140110521 - 2² = 140110517 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140110521.

It is not an unprimeable number, because it can be changed into a prime (140110501) 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, 17061 + ... + 23901.

It is an arithmetic number, because the mean of its divisors is an integer number (23358588).

Almost surely, 2^140110521 is an apocalyptic number.

It is an amenable number.

140110521 is a deficient number, since it is larger than the sum of its proper divisors (46758183).

140110521 is an equidigital number, since it uses as much as digits as its factorization.

140110521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13671.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 140110521 is about 11836.8290094941. The cubic root of 140110521 is about 519.3860122549.

Adding to 140110521 its reverse (125011041), we get a palindrome (265121562).

The spelling of 140110521 in words is "one hundred forty million, one hundred ten thousand, five hundred twenty-one".