1265000147 has 2 divisors, whose sum is σ = 1265000148. Its totient is φ = 1265000146.

The previous prime is 1265000129. The next prime is 1265000173. The reversal of 1265000147 is 7410005621.

It is an a-pointer prime, because the next prime (1265000173) can be obtained adding 1265000147 to its sum of digits (26).

It is a weak prime.

It is an emirp because it is prime and its reverse (7410005621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1265000147 - 2¹⁴ = 1264983763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1265200147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632500073 + 632500074.

It is an arithmetic number, because the mean of its divisors is an integer number (632500074).

Almost surely, 2^1265000147 is an apocalyptic number.

1265000147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265000147 is an equidigital number, since it uses as much as digits as its factorization.

1265000147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1265000147 is about 35566.8405540891. The cubic root of 1265000147 is about 1081.5091348029.

Adding to 1265000147 its reverse (7410005621), we get a palindrome (8675005768).

The spelling of 1265000147 in words is "one billion, two hundred sixty-five million, one hundred forty-seven", and thus it is an aban number.