123377345 has 24 divisors (see below), whose sum is σ = 185477544. Its totient is φ = 78091776.

The previous prime is 123377341. The next prime is 123377377. The reversal of 123377345 is 543773321.

It can be written as a sum of positive squares in 4 ways, for example, as 1517824 + 121859521 = 1232^2 + 11039^2 .

It is not a de Polignac number, because 123377345 - 2² = 123377341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123377341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16184 + ... + 22553.

It is an arithmetic number, because the mean of its divisors is an integer number (7728231).

Almost surely, 2^123377345 is an apocalyptic number.

It is an amenable number.

123377345 is a deficient number, since it is larger than the sum of its proper divisors (62100199).

123377345 is a wasteful number, since it uses less digits than its factorization.

123377345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38769 (or 38762 counting only the distinct ones).

The product of its digits is 52920, while the sum is 35.

The square root of 123377345 is about 11107.5355052325. The cubic root of 123377345 is about 497.8270300839.

The spelling of 123377345 in words is "one hundred twenty-three million, three hundred seventy-seven thousand, three hundred forty-five".