123734545 has 8 divisors (see below), whose sum is σ = 161979840. Its totient is φ = 89988720.

The previous prime is 123734543. The next prime is 123734557. The reversal of 123734545 is 545437321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123734545 - 2¹ = 123734543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123734545.

It is not an unprimeable number, because it can be changed into a prime (123734543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1124805 + ... + 1124914.

It is an arithmetic number, because the mean of its divisors is an integer number (20247480).

Almost surely, 2^123734545 is an apocalyptic number.

It is an amenable number.

123734545 is a deficient number, since it is larger than the sum of its proper divisors (38245295).

123734545 is a wasteful number, since it uses less digits than its factorization.

123734545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249735.

The product of its digits is 50400, while the sum is 34.

The square root of 123734545 is about 11123.6030583620. The cubic root of 123734545 is about 498.3070006431.

The spelling of 123734545 in words is "one hundred twenty-three million, seven hundred thirty-four thousand, five hundred forty-five".