123734845 has 16 divisors (see below), whose sum is σ = 164228400. Its totient is φ = 88902144.

The previous prime is 123734837. The next prime is 123734869. The reversal of 123734845 is 548437321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2316484 + 121418361 = 1522^2 + 11019^2 .

It is a cyclic number.

It is not a de Polignac number, because 123734845 - 2³ = 123734837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23320 + ... + 28129.

It is an arithmetic number, because the mean of its divisors is an integer number (10264275).

Almost surely, 2^123734845 is an apocalyptic number.

It is an amenable number.

123734845 is a deficient number, since it is larger than the sum of its proper divisors (40493555).

123734845 is a wasteful number, since it uses less digits than its factorization.

123734845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51504.

The product of its digits is 80640, while the sum is 37.

The square root of 123734845 is about 11123.6165431931. The cubic root of 123734845 is about 498.3074033654.

The spelling of 123734845 in words is "one hundred twenty-three million, seven hundred thirty-four thousand, eight hundred forty-five".