141620861 has 2 divisors, whose sum is σ = 141620862. Its totient is φ = 141620860.

The previous prime is 141620849. The next prime is 141620881. The reversal of 141620861 is 168026141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139688761 + 1932100 = 11819^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 141620861 - 2¹⁸ = 141358717 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141620881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70810430 + 70810431.

It is an arithmetic number, because the mean of its divisors is an integer number (70810431).

Almost surely, 2^141620861 is an apocalyptic number.

It is an amenable number.

141620861 is a deficient number, since it is larger than the sum of its proper divisors (1).

141620861 is an equidigital number, since it uses as much as digits as its factorization.

141620861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 141620861 is about 11900.4563357881. The cubic root of 141620861 is about 521.2456097869.

The spelling of 141620861 in words is "one hundred forty-one million, six hundred twenty thousand, eight hundred sixty-one".