141897281 has 4 divisors (see below), whose sum is σ = 148066752. Its totient is φ = 135727812.

The previous prime is 141897251. The next prime is 141897299. The reversal of 141897281 is 182798141.

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 141897281 - 2¹⁰ = 141896257 is a prime.

It is a super-2 number, since 2×141897281² = 40269676710385922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141897211) 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, 3084701 + ... + 3084746.

It is an arithmetic number, because the mean of its divisors is an integer number (37016688).

Almost surely, 2^141897281 is an apocalyptic number.

It is an amenable number.

141897281 is a deficient number, since it is larger than the sum of its proper divisors (6169471).

141897281 is an equidigital number, since it uses as much as digits as its factorization.

141897281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6169470.

The product of its digits is 32256, while the sum is 41.

The square root of 141897281 is about 11912.0645146003. The cubic root of 141897281 is about 521.5845171820.

The spelling of 141897281 in words is "one hundred forty-one million, eight hundred ninety-seven thousand, two hundred eighty-one".