123486345 has 24 divisors (see below), whose sum is σ = 215239752. Its totient is φ = 65491200.

The previous prime is 123486331. The next prime is 123486347. The reversal of 123486345 is 543684321.

123486345 is a `hidden beast` number, since 1 + 234 + 86 + 345 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9801 + 123476544 = 99^2 + 11112^2 .

It is not a de Polignac number, because 123486345 - 2⁴ = 123486329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123486347) 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 23 ways as a sum of consecutive naturals, for example, 565 + ... + 15725.

It is an arithmetic number, because the mean of its divisors is an integer number (8968323).

Almost surely, 2^123486345 is an apocalyptic number.

123486345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123486345 is a deficient number, since it is larger than the sum of its proper divisors (91753407).

123486345 is a wasteful number, since it uses less digits than its factorization.

123486345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15353 (or 15350 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 123486345 is about 11112.4410009682. The cubic root of 123486345 is about 497.9735917675.

The spelling of 123486345 in words is "one hundred twenty-three million, four hundred eighty-six thousand, three hundred forty-five".