141947111 has 2 divisors, whose sum is σ = 141947112. Its totient is φ = 141947110.

The previous prime is 141947101. The next prime is 141947147. The reversal of 141947111 is 111749141.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141947111 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141947101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70973555 + 70973556.

It is an arithmetic number, because the mean of its divisors is an integer number (70973556).

Almost surely, 2^141947111 is an apocalyptic number.

141947111 is a deficient number, since it is larger than the sum of its proper divisors (1).

141947111 is an equidigital number, since it uses as much as digits as its factorization.

141947111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 29.

The square root of 141947111 is about 11914.1559079945. The cubic root of 141947111 is about 521.6455648980.

The spelling of 141947111 in words is "one hundred forty-one million, nine hundred forty-seven thousand, one hundred eleven".