123949934 has 12 divisors (see below), whose sum is σ = 189507696. Its totient is φ = 60802872.

The previous prime is 123949919. The next prime is 123949937. The reversal of 123949934 is 439949321.

It is a super-2 number, since 2×123949934² = 30727172277208712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123949937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5414 + ... + 16649.

It is an arithmetic number, because the mean of its divisors is an integer number (15792308).

Almost surely, 2^123949934 is an apocalyptic number.

123949934 is a deficient number, since it is larger than the sum of its proper divisors (65557762).

123949934 is an equidigital number, since it uses as much as digits as its factorization.

123949934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22171 (or 22118 counting only the distinct ones).

The product of its digits is 209952, while the sum is 44.

The square root of 123949934 is about 11133.2804689364. The cubic root of 123949934 is about 498.5959731073.

The spelling of 123949934 in words is "one hundred twenty-three million, nine hundred forty-nine thousand, nine hundred thirty-four".