138232465 has 16 divisors (see below), whose sum is σ = 189768960. Its totient is φ = 94691520.

The previous prime is 138232463. The next prime is 138232483. The reversal of 138232465 is 564232831.

It is not a de Polignac number, because 138232465 - 2¹ = 138232463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138232465.

It is not an unprimeable number, because it can be changed into a prime (138232463) 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 15 ways as a sum of consecutive naturals, for example, 58660 + ... + 60970.

It is an arithmetic number, because the mean of its divisors is an integer number (11860560).

Almost surely, 2^138232465 is an apocalyptic number.

It is an amenable number.

138232465 is a deficient number, since it is larger than the sum of its proper divisors (51536495).

138232465 is a wasteful number, since it uses less digits than its factorization.

138232465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032.

The product of its digits is 34560, while the sum is 34.

The square root of 138232465 is about 11757.2303286106. The cubic root of 138232465 is about 517.0549309547.

The spelling of 138232465 in words is "one hundred thirty-eight million, two hundred thirty-two thousand, four hundred sixty-five".