145685265 has 32 divisors (see below), whose sum is σ = 254969856. Its totient is φ = 70445760.

The previous prime is 145685261. The next prime is 145685279. The reversal of 145685265 is 562586541.

It is not a de Polignac number, because 145685265 - 2² = 145685261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145685261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75442 + ... + 77348.

It is an arithmetic number, because the mean of its divisors is an integer number (7967808).

Almost surely, 2^145685265 is an apocalyptic number.

145685265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145685265 is a deficient number, since it is larger than the sum of its proper divisors (109284591).

145685265 is a wasteful number, since it uses less digits than its factorization.

145685265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389.

The product of its digits is 288000, while the sum is 42.

The square root of 145685265 is about 12070.0151201231. The cubic root of 145685265 is about 526.1850960817.

The spelling of 145685265 in words is "one hundred forty-five million, six hundred eighty-five thousand, two hundred sixty-five".