141445681 has 4 divisors (see below), whose sum is σ = 152326132. Its totient is φ = 130565232.

The previous prime is 141445669. The next prime is 141445693. The reversal of 141445681 is 186544141.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (141445669) and next prime (141445693).

It can be written as a sum of positive squares in 2 ways, for example, as 25000000 + 116445681 = 5000^2 + 10791^2 .

It is a cyclic number.

It is not a de Polignac number, because 141445681 - 2⁷ = 141445553 is a prime.

It is a super-2 number, since 2×141445681² = 40013761347107522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141445651) 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, 5440206 + ... + 5440231.

It is an arithmetic number, because the mean of its divisors is an integer number (38081533).

Almost surely, 2^141445681 is an apocalyptic number.

It is an amenable number.

141445681 is a deficient number, since it is larger than the sum of its proper divisors (10880451).

141445681 is a wasteful number, since it uses less digits than its factorization.

141445681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10880450.

The product of its digits is 15360, while the sum is 34.

The square root of 141445681 is about 11893.0938363405. The cubic root of 141445681 is about 521.0306003102.

The spelling of 141445681 in words is "one hundred forty-one million, four hundred forty-five thousand, six hundred eighty-one".