141421523 has 4 divisors (see below), whose sum is σ = 143532360. Its totient is φ = 139310688.

The previous prime is 141421507. The next prime is 141421529. The reversal of 141421523 is 325124141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325124141 = 4547 ⋅71503.

It is not a de Polignac number, because 141421523 - 2⁴ = 141421507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141421529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055318 + ... + 1055451.

It is an arithmetic number, because the mean of its divisors is an integer number (35883090).

Almost surely, 2^141421523 is an apocalyptic number.

141421523 is a deficient number, since it is larger than the sum of its proper divisors (2110837).

141421523 is an equidigital number, since it uses as much as digits as its factorization.

141421523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110836.

The product of its digits is 960, while the sum is 23.

The square root of 141421523 is about 11892.0781615326. The cubic root of 141421523 is about 521.0009357449. Note that the first 3 decimals are identical.

Adding to 141421523 its reverse (325124141), we get a palindrome (466545664).

The spelling of 141421523 in words is "one hundred forty-one million, four hundred twenty-one thousand, five hundred twenty-three".