141921575409 has 4 divisors (see below), whose sum is σ = 189228767216. Its totient is φ = 94614383604.

The previous prime is 141921575407. The next prime is 141921575437. The reversal of 141921575409 is 904575129141.

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: 904575129141 = 3 ⋅301525043047.

It is not a de Polignac number, because 141921575409 - 2¹ = 141921575407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141921575401) 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, 23653595899 + ... + 23653595904.

It is an arithmetic number, because the mean of its divisors is an integer number (47307191804).

Almost surely, 2^141921575409 is an apocalyptic number.

It is an amenable number.

141921575409 is a deficient number, since it is larger than the sum of its proper divisors (47307191807).

141921575409 is an equidigital number, since it uses as much as digits as its factorization.

141921575409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47307191806.

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 141921575409 in words is "one hundred forty-one billion, nine hundred twenty-one million, five hundred seventy-five thousand, four hundred nine".