123124742 has 16 divisors (see below), whose sum is σ = 199139472. Its totient is φ = 56756640.

The previous prime is 123124733. The next prime is 123124783. The reversal of 123124742 is 247421321.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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, 22808 + ... + 27684.

It is an arithmetic number, because the mean of its divisors is an integer number (12446217).

Almost surely, 2^123124742 is an apocalyptic number.

123124742 is a deficient number, since it is larger than the sum of its proper divisors (76014730).

123124742 is a wasteful number, since it uses less digits than its factorization.

123124742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5863.

The product of its digits is 2688, while the sum is 26.

The square root of 123124742 is about 11096.1588849475. The cubic root of 123124742 is about 497.4870472962.

The spelling of 123124742 in words is "one hundred twenty-three million, one hundred twenty-four thousand, seven hundred forty-two".