136841447 has 2 divisors, whose sum is σ = 136841448. Its totient is φ = 136841446.

The previous prime is 136841431. The next prime is 136841461. The reversal of 136841447 is 744148631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136841447 - 2⁴ = 136841431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136841447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136841407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68420723 + 68420724.

It is an arithmetic number, because the mean of its divisors is an integer number (68420724).

Almost surely, 2^136841447 is an apocalyptic number.

136841447 is a deficient number, since it is larger than the sum of its proper divisors (1).

136841447 is an equidigital number, since it uses as much as digits as its factorization.

136841447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 38.

The square root of 136841447 is about 11697.9249014515. The cubic root of 136841447 is about 515.3147251499.

The spelling of 136841447 in words is "one hundred thirty-six million, eight hundred forty-one thousand, four hundred forty-seven".