145622565 has 48 divisors (see below), whose sum is σ = 282836736. Its totient is φ = 68688000.

The previous prime is 145622549. The next prime is 145622567. The reversal of 145622565 is 565226541.

145622565 is a `hidden beast` number, since 14 + 562 + 25 + 65 = 666.

It is not a de Polignac number, because 145622565 - 2⁴ = 145622549 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145622567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14340 + ... + 22290.

It is an arithmetic number, because the mean of its divisors is an integer number (5892432).

Almost surely, 2^145622565 is an apocalyptic number.

145622565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145622565 is a deficient number, since it is larger than the sum of its proper divisors (137214171).

145622565 is a wasteful number, since it uses less digits than its factorization.

145622565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010 (or 8007 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 145622565 is about 12067.4174950567. The cubic root of 145622565 is about 526.1095987652.

The spelling of 145622565 in words is "one hundred forty-five million, six hundred twenty-two thousand, five hundred sixty-five".