141140021 has 4 divisors (see below), whose sum is σ = 153970944. Its totient is φ = 128309100.

The previous prime is 141140011. The next prime is 141140033. The reversal of 141140021 is 120041141.

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: 120041141 = 11 ⋅10912831.

It is a cyclic number.

It is not a de Polignac number, because 141140021 - 2¹⁰ = 141138997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 141139978 and 141140005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141140011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6415445 + ... + 6415466.

It is an arithmetic number, because the mean of its divisors is an integer number (38492736).

Almost surely, 2^141140021 is an apocalyptic number.

141140021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

141140021 is a deficient number, since it is larger than the sum of its proper divisors (12830923).

141140021 is a wasteful number, since it uses less digits than its factorization.

141140021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12830922.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 141140021 is about 11880.2365717186. The cubic root of 141140021 is about 520.6550189857.

Adding to 141140021 its reverse (120041141), we get a palindrome (261181162).

The spelling of 141140021 in words is "one hundred forty-one million, one hundred forty thousand, twenty-one".