141623681 has 2 divisors, whose sum is σ = 141623682. Its totient is φ = 141623680.

The previous prime is 141623623. The next prime is 141623683. The reversal of 141623681 is 186326141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114490000 + 27133681 = 10700^2 + 5209^2 .

It is a cyclic number.

It is not a de Polignac number, because 141623681 - 2¹⁸ = 141361537 is a prime.

It is a super-2 number, since 2×141623681² = 40114534039979522, which contains 22 as substring.

Together with 141623683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (141623683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70811840 + 70811841.

It is an arithmetic number, because the mean of its divisors is an integer number (70811841).

Almost surely, 2^141623681 is an apocalyptic number.

It is an amenable number.

141623681 is a deficient number, since it is larger than the sum of its proper divisors (1).

141623681 is an equidigital number, since it uses as much as digits as its factorization.

141623681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 141623681 is about 11900.5748180498. The cubic root of 141623681 is about 521.2490695005.

The spelling of 141623681 in words is "one hundred forty-one million, six hundred twenty-three thousand, six hundred eighty-one".