265135416 has 128 divisors (see below), whose sum is σ = 827473920. Its totient is φ = 68926464.

The previous prime is 265135399. The next prime is 265135433. The reversal of 265135416 is 614531562.

It is an interprime number because it is at equal distance from previous prime (265135399) and next prime (265135433).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158601 + ... + 160263.

It is an arithmetic number, because the mean of its divisors is an integer number (6464640).

Almost surely, 2^265135416 is an apocalyptic number.

265135416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265135416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413736960).

265135416 is an abundant number, since it is smaller than the sum of its proper divisors (562338504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265135416 is a wasteful number, since it uses less digits than its factorization.

265135416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765 (or 1761 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 265135416 is about 16282.9793342619. The cubic root of 265135416 is about 642.4252188296.

Adding to 265135416 its reverse (614531562), we get a palindrome (879666978).

The spelling of 265135416 in words is "two hundred sixty-five million, one hundred thirty-five thousand, four hundred sixteen".