133998847 has 2 divisors, whose sum is σ = 133998848. Its totient is φ = 133998846.

The previous prime is 133998817. The next prime is 133998869. The reversal of 133998847 is 748899331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133998847 - 2¹¹ = 133996799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133998794 and 133998803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133998817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66999423 + 66999424.

It is an arithmetic number, because the mean of its divisors is an integer number (66999424).

Almost surely, 2^133998847 is an apocalyptic number.

133998847 is a deficient number, since it is larger than the sum of its proper divisors (1).

133998847 is an equidigital number, since it uses as much as digits as its factorization.

133998847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 133998847 is about 11575.7871006684. The cubic root of 133998847 is about 511.7215269840.

The spelling of 133998847 in words is "one hundred thirty-three million, nine hundred ninety-eight thousand, eight hundred forty-seven".