265148240 has 40 divisors (see below), whose sum is σ = 704538240. Its totient is φ = 90907776.

The previous prime is 265148237. The next prime is 265148243. The reversal of 265148240 is 42841562.

It is an interprime number because it is at equal distance from previous prime (265148237) and next prime (265148243).

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 265148197 and 265148206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265148243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236180 + ... + 237299.

It is an arithmetic number, because the mean of its divisors is an integer number (17613456).

Almost surely, 2^265148240 is an apocalyptic number.

265148240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265148240 is an abundant number, since it is smaller than the sum of its proper divisors (439390000).

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

265148240 is a wasteful number, since it uses less digits than its factorization.

265148240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473499 (or 473493 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 265148240 is about 16283.3731149292. The cubic root of 265148240 is about 642.4355762139.

The spelling of 265148240 in words is "two hundred sixty-five million, one hundred forty-eight thousand, two hundred forty".