123574142 has 4 divisors (see below), whose sum is σ = 185361216. Its totient is φ = 61787070.

The previous prime is 123574127. The next prime is 123574159. The reversal of 123574142 is 241475321.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30893534 + ... + 30893537.

It is an arithmetic number, because the mean of its divisors is an integer number (46340304).

Almost surely, 2^123574142 is an apocalyptic number.

123574142 is a deficient number, since it is larger than the sum of its proper divisors (61787074).

123574142 is an equidigital number, since it uses as much as digits as its factorization.

123574142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61787073.

The product of its digits is 6720, while the sum is 29.

The square root of 123574142 is about 11116.3906912271. The cubic root of 123574142 is about 498.0915811424.

The spelling of 123574142 in words is "one hundred twenty-three million, five hundred seventy-four thousand, one hundred forty-two".