123740834 has 16 divisors (see below), whose sum is σ = 212284800. Its totient is φ = 52992384.

The previous prime is 123740791. The next prime is 123740861. The reversal of 123740834 is 438047321.

It is a self number, because there is not a number n which added to its sum of digits gives 123740834.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24107 + ... + 28785.

It is an arithmetic number, because the mean of its divisors is an integer number (13267800).

Almost surely, 2^123740834 is an apocalyptic number.

123740834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123740834 is a deficient number, since it is larger than the sum of its proper divisors (88543966).

123740834 is a wasteful number, since it uses less digits than its factorization.

123740834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 123740834 is about 11123.8857419519. The cubic root of 123740834 is about 498.3154429086.

The spelling of 123740834 in words is "one hundred twenty-three million, seven hundred forty thousand, eight hundred thirty-four".