141087021 has 4 divisors (see below), whose sum is σ = 188116032. Its totient is φ = 94058012.

The previous prime is 141087017. The next prime is 141087043. The reversal of 141087021 is 120780141.

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: 120780141 = 3 ⋅40260047.

It is a cyclic number.

It is not a de Polignac number, because 141087021 - 2² = 141087017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 141086982 and 141087000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141087061) 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, 23514501 + ... + 23514506.

It is an arithmetic number, because the mean of its divisors is an integer number (47029008).

Almost surely, 2^141087021 is an apocalyptic number.

It is an amenable number.

141087021 is a deficient number, since it is larger than the sum of its proper divisors (47029011).

141087021 is an equidigital number, since it uses as much as digits as its factorization.

141087021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47029010.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 141087021 is about 11878.0057669627. The cubic root of 141087021 is about 520.5898398097.

The spelling of 141087021 in words is "one hundred forty-one million, eighty-seven thousand, twenty-one".