123152065 has 4 divisors (see below), whose sum is σ = 147782484. Its totient is φ = 98521648.

The previous prime is 123152047. The next prime is 123152101. The reversal of 123152065 is 560251321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560251321 = 7 ⋅80035903.

It can be written as a sum of positive squares in 2 ways, for example, as 93547584 + 29604481 = 9672^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 123152065 - 2⁷ = 123151937 is a prime.

It is a super-3 number, since 3×123152065³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12315202 + ... + 12315211.

It is an arithmetic number, because the mean of its divisors is an integer number (36945621).

Almost surely, 2^123152065 is an apocalyptic number.

It is an amenable number.

123152065 is a deficient number, since it is larger than the sum of its proper divisors (24630419).

123152065 is an equidigital number, since it uses as much as digits as its factorization.

123152065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24630418.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 123152065 is about 11097.3900084660. The cubic root of 123152065 is about 497.5238442146.

The spelling of 123152065 in words is "one hundred twenty-three million, one hundred fifty-two thousand, sixty-five".