268145147 has 4 divisors (see below), whose sum is σ = 272690040. Its totient is φ = 263600256.

The previous prime is 268145113. The next prime is 268145149. The reversal of 268145147 is 741541862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741541862 = 2 ⋅370770931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268145147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268145147.

It is not an unprimeable number, because it can be changed into a prime (268145149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272358 + ... + 2272475.

It is an arithmetic number, because the mean of its divisors is an integer number (68172510).

Almost surely, 2^268145147 is an apocalyptic number.

268145147 is a deficient number, since it is larger than the sum of its proper divisors (4544893).

268145147 is an equidigital number, since it uses as much as digits as its factorization.

268145147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544892.

The product of its digits is 53760, while the sum is 38.

The square root of 268145147 is about 16375.1380757537. The cubic root of 268145147 is about 644.8469456363.

The spelling of 268145147 in words is "two hundred sixty-eight million, one hundred forty-five thousand, one hundred forty-seven".