265241961137 has 4 divisors (see below), whose sum is σ = 265443055680. Its totient is φ = 265040866596.

The previous prime is 265241961053. The next prime is 265241961139. The reversal of 265241961137 is 731169142562.

It is a happy number.

265241961137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 731169142562 = 2 ⋅365584571281.

It is a cyclic number.

It is not a de Polignac number, because 265241961137 - 2⁸ = 265241960881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 265241961091 and 265241961100.

It is not an unprimeable number, because it can be changed into a prime (265241961139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100545293 + ... + 100547930.

It is an arithmetic number, because the mean of its divisors is an integer number (66360763920).

Almost surely, 2^265241961137 is an apocalyptic number.

It is an amenable number.

265241961137 is a deficient number, since it is larger than the sum of its proper divisors (201094543).

265241961137 is a wasteful number, since it uses less digits than its factorization.

265241961137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201094542.

The product of its digits is 544320, while the sum is 47.

The spelling of 265241961137 in words is "two hundred sixty-five billion, two hundred forty-one million, nine hundred sixty-one thousand, one hundred thirty-seven".