265645145 has 16 divisors (see below), whose sum is σ = 338256000. Its totient is φ = 199582464.

The previous prime is 265645139. The next prime is 265645181. The reversal of 265645145 is 541546562.

It is a cyclic number.

It is not a de Polignac number, because 265645145 - 2⁸ = 265644889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265645099 and 265645108.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 39284 + ... + 45546.

It is an arithmetic number, because the mean of its divisors is an integer number (21141000).

Almost surely, 2^265645145 is an apocalyptic number.

It is an amenable number.

265645145 is a deficient number, since it is larger than the sum of its proper divisors (72610855).

265645145 is a wasteful number, since it uses less digits than its factorization.

265645145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784.

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

The square root of 265645145 is about 16298.6240216774. The cubic root of 265645145 is about 642.8366477534.

The spelling of 265645145 in words is "two hundred sixty-five million, six hundred forty-five thousand, one hundred forty-five".