123742375 has 8 divisors (see below), whose sum is σ = 154430640. Its totient is φ = 98993800.

The previous prime is 123742357. The next prime is 123742403. The reversal of 123742375 is 573247321.

It is not a de Polignac number, because 123742375 - 2¹¹ = 123740327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123742375.

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, 494845 + ... + 495094.

It is an arithmetic number, because the mean of its divisors is an integer number (19303830).

Almost surely, 2^123742375 is an apocalyptic number.

123742375 is a deficient number, since it is larger than the sum of its proper divisors (30688265).

123742375 is an frugal number, since it uses more digits than its factorization.

123742375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989954 (or 989944 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 123742375 is about 11123.9550071007. The cubic root of 123742375 is about 498.3175114818.

Adding to 123742375 its reverse (573247321), we get a palindrome (696989696).

The spelling of 123742375 in words is "one hundred twenty-three million, seven hundred forty-two thousand, three hundred seventy-five".