117201947 has 2 divisors, whose sum is σ = 117201948. Its totient is φ = 117201946.

The previous prime is 117201941. The next prime is 117201983. The reversal of 117201947 is 749102711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117201947 - 2¹² = 117197851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117201941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58600973 + 58600974.

It is an arithmetic number, because the mean of its divisors is an integer number (58600974).

Almost surely, 2^117201947 is an apocalyptic number.

117201947 is a deficient number, since it is larger than the sum of its proper divisors (1).

117201947 is an equidigital number, since it uses as much as digits as its factorization.

117201947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 117201947 is about 10825.9848050882. The cubic root of 117201947 is about 489.3785638639.

The spelling of 117201947 in words is "one hundred seventeen million, two hundred one thousand, nine hundred forty-seven".