141535681 has 4 divisors (see below), whose sum is σ = 161755072. Its totient is φ = 121316292.

The previous prime is 141535663. The next prime is 141535687. The reversal of 141535681 is 186535141.

141535681 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.

It is a cyclic number.

It is not a de Polignac number, because 141535681 - 2¹¹ = 141533633 is a prime.

It is a super-2 number, since 2×141535681² = 40064697992267522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141535687) 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, 10109685 + ... + 10109698.

It is an arithmetic number, because the mean of its divisors is an integer number (40438768).

Almost surely, 2^141535681 is an apocalyptic number.

It is an amenable number.

141535681 is a deficient number, since it is larger than the sum of its proper divisors (20219391).

141535681 is an equidigital number, since it uses as much as digits as its factorization.

141535681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20219390.

The product of its digits is 14400, while the sum is 34.

The square root of 141535681 is about 11896.8769431309. The cubic root of 141535681 is about 521.1410851537.

The spelling of 141535681 in words is "one hundred forty-one million, five hundred thirty-five thousand, six hundred eighty-one".