265134142505 has 8 divisors (see below), whose sum is σ = 318164226432. Its totient is φ = 212105143728.

The previous prime is 265134142439. The next prime is 265134142519. The reversal of 265134142505 is 505241431562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 265134142505 - 2¹⁶ = 265134076969 is a prime.

It is a super-2 number, since 2×265134142505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431984 + ... + 846686.

It is an arithmetic number, because the mean of its divisors is an integer number (39770528304).

Almost surely, 2^265134142505 is an apocalyptic number.

It is an amenable number.

265134142505 is a deficient number, since it is larger than the sum of its proper divisors (53030083927).

265134142505 is a wasteful number, since it uses less digits than its factorization.

265134142505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542575.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 265134142505 in words is "two hundred sixty-five billion, one hundred thirty-four million, one hundred forty-two thousand, five hundred five".