247270147 has 2 divisors, whose sum is σ = 247270148. Its totient is φ = 247270146.

The previous prime is 247270129. The next prime is 247270157. The reversal of 247270147 is 741072742.

It is a happy number.

247270147 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 not a de Polignac number, because 247270147 - 2¹⁵ = 247237379 is a prime.

It is a super-2 number, since 2×247270147² = 122285051194803218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247270157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123635073 + 123635074.

It is an arithmetic number, because the mean of its divisors is an integer number (123635074).

Almost surely, 2^247270147 is an apocalyptic number.

247270147 is a deficient number, since it is larger than the sum of its proper divisors (1).

247270147 is an equidigital number, since it uses as much as digits as its factorization.

247270147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 247270147 is about 15724.8258177952. The cubic root of 247270147 is about 627.6591952826.

The spelling of 247270147 in words is "two hundred forty-seven million, two hundred seventy thousand, one hundred forty-seven".