141453021 has 4 divisors (see below), whose sum is σ = 188604032. Its totient is φ = 94302012.

The previous prime is 141453017. The next prime is 141453029. The reversal of 141453021 is 120354141.

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: 120354141 = 3 ⋅40118047.

It is not a de Polignac number, because 141453021 - 2² = 141453017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141453029) 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, 23575501 + ... + 23575506.

It is an arithmetic number, because the mean of its divisors is an integer number (47151008).

Almost surely, 2^141453021 is an apocalyptic number.

It is an amenable number.

141453021 is a deficient number, since it is larger than the sum of its proper divisors (47151011).

141453021 is an equidigital number, since it uses as much as digits as its factorization.

141453021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47151010.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 141453021 is about 11893.4024147844. The cubic root of 141453021 is about 521.0396127180.

The spelling of 141453021 in words is "one hundred forty-one million, four hundred fifty-three thousand, twenty-one".