123965465 has 12 divisors (see below), whose sum is σ = 160317612. Its totient is φ = 91477440.

The previous prime is 123965449. The next prime is 123965483. The reversal of 123965465 is 564569321.

It can be written as a sum of positive squares in 6 ways, for example, as 11669056 + 112296409 = 3416^2 + 10597^2 .

It is not a de Polignac number, because 123965465 - 2⁴ = 123965449 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89075 + ... + 90455.

It is an arithmetic number, because the mean of its divisors is an integer number (13359801).

Almost surely, 2^123965465 is an apocalyptic number.

It is an amenable number.

123965465 is a deficient number, since it is larger than the sum of its proper divisors (36352147).

123965465 is an frugal number, since it uses more digits than its factorization.

123965465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780 (or 1399 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 123965465 is about 11133.9779504003. The cubic root of 123965465 is about 498.6167970276.

The spelling of 123965465 in words is "one hundred twenty-three million, nine hundred sixty-five thousand, four hundred sixty-five".