1265012470135 has 4 divisors (see below), whose sum is σ = 1518014964168. Its totient is φ = 1012009976104.

The previous prime is 1265012470121. The next prime is 1265012470147. The reversal of 1265012470135 is 5310742105621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1265012470135 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1265012470094 and 1265012470103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126501247009 + ... + 126501247018.

It is an arithmetic number, because the mean of its divisors is an integer number (379503741042).

Almost surely, 2^{1265012470135} is an apocalyptic number.

1265012470135 is a deficient number, since it is larger than the sum of its proper divisors (253002494033).

1265012470135 is an equidigital number, since it uses as much as digits as its factorization.

1265012470135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253002494032.

The product of its (nonzero) digits is 50400, while the sum is 37.

Adding to 1265012470135 its reverse (5310742105621), we get a palindrome (6575754575756).

The spelling of 1265012470135 in words is "one trillion, two hundred sixty-five billion, twelve million, four hundred seventy thousand, one hundred thirty-five".