140044101 has 4 divisors (see below), whose sum is σ = 186725472. Its totient is φ = 93362732.

The previous prime is 140044063. The next prime is 140044123. The reversal of 140044101 is 101440041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101440041 = 3 ⋅33813347.

It is a cyclic number.

It is not a de Polignac number, because 140044101 - 2¹⁰ = 140043077 is a prime.

It is a super-2 number, since 2×140044101² = 39224700449796402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140044301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23340681 + ... + 23340686.

It is an arithmetic number, because the mean of its divisors is an integer number (46681368).

Almost surely, 2^140044101 is an apocalyptic number.

It is an amenable number.

140044101 is a deficient number, since it is larger than the sum of its proper divisors (46681371).

140044101 is an equidigital number, since it uses as much as digits as its factorization.

140044101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46681370.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 140044101 is about 11834.0230268493. The cubic root of 140044101 is about 519.3039268855.

Adding to 140044101 its reverse (101440041), we get a palindrome (241484142).

The spelling of 140044101 in words is "one hundred forty million, forty-four thousand, one hundred one".