140421041 has 4 divisors (see below), whose sum is σ = 144950784. Its totient is φ = 135891300.

The previous prime is 140420993. The next prime is 140421053. The reversal of 140421041 is 140124041.

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: 140124041 = 5233 ⋅26777.

It is a cyclic number.

It is not a de Polignac number, because 140421041 - 2¹⁴ = 140404657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140421341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264825 + ... + 2264886.

It is an arithmetic number, because the mean of its divisors is an integer number (36237696).

Almost surely, 2^140421041 is an apocalyptic number.

It is an amenable number.

140421041 is a deficient number, since it is larger than the sum of its proper divisors (4529743).

140421041 is an equidigital number, since it uses as much as digits as its factorization.

140421041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529742.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 140421041 is about 11849.9384386587. The cubic root of 140421041 is about 519.7694256356.

Adding to 140421041 its reverse (140124041), we get a palindrome (280545082).

The spelling of 140421041 in words is "one hundred forty million, four hundred twenty-one thousand, forty-one".