247235099 has 2 divisors, whose sum is σ = 247235100. Its totient is φ = 247235098.

The previous prime is 247235077. The next prime is 247235101. The reversal of 247235099 is 990532742.

247235099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247235099 is a prime.

It is a super-2 number, since 2×247235099² = 122250388355079602, which contains 22 as substring.

Together with 247235101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (247235069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123617549 + 123617550.

It is an arithmetic number, because the mean of its divisors is an integer number (123617550).

Almost surely, 2^247235099 is an apocalyptic number.

247235099 is a deficient number, since it is larger than the sum of its proper divisors (1).

247235099 is an equidigital number, since it uses as much as digits as its factorization.

247235099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 247235099 is about 15723.7113621435. The cubic root of 247235099 is about 627.6295391364.

The spelling of 247235099 in words is "two hundred forty-seven million, two hundred thirty-five thousand, ninety-nine".