141527521 has 4 divisors (see below), whose sum is σ = 142395952. Its totient is φ = 140659092.

The previous prime is 141527471. The next prime is 141527537. The reversal of 141527521 is 125725141.

141527521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 125725141 = 47 ⋅2675003.

It is a cyclic number.

It is not a de Polignac number, because 141527521 - 2¹⁷ = 141396449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 141527521.

It is not an unprimeable number, because it can be changed into a prime (141527591) 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, 433971 + ... + 434296.

It is an arithmetic number, because the mean of its divisors is an integer number (35598988).

Almost surely, 2^141527521 is an apocalyptic number.

It is an amenable number.

141527521 is a deficient number, since it is larger than the sum of its proper divisors (868431).

141527521 is an equidigital number, since it uses as much as digits as its factorization.

141527521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868430.

The product of its digits is 2800, while the sum is 28.

The square root of 141527521 is about 11896.5339910413. The cubic root of 141527521 is about 521.1310697924.

The spelling of 141527521 in words is "one hundred forty-one million, five hundred twenty-seven thousand, five hundred twenty-one".