123819934 has 16 divisors (see below), whose sum is σ = 213618528. Its totient is φ = 52726752.

The previous prime is 123819931. The next prime is 123819973. The reversal of 123819934 is 439918321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123819931) 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, 25969 + ... + 30364.

It is an arithmetic number, because the mean of its divisors is an integer number (13351158).

Almost surely, 2^123819934 is an apocalyptic number.

123819934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123819934 is a deficient number, since it is larger than the sum of its proper divisors (89798594).

123819934 is a wasteful number, since it uses less digits than its factorization.

123819934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56499.

The product of its digits is 46656, while the sum is 40.

The square root of 123819934 is about 11127.4405862265. The cubic root of 123819934 is about 498.4216012244.

The spelling of 123819934 in words is "one hundred twenty-three million, eight hundred nineteen thousand, nine hundred thirty-four".