123250142 has 4 divisors (see below), whose sum is σ = 184875216. Its totient is φ = 61625070.

The previous prime is 123250133. The next prime is 123250147. The reversal of 123250142 is 241052321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123250147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30812534 + ... + 30812537.

It is an arithmetic number, because the mean of its divisors is an integer number (46218804).

Almost surely, 2^123250142 is an apocalyptic number.

123250142 is a deficient number, since it is larger than the sum of its proper divisors (61625074).

123250142 is an equidigital number, since it uses as much as digits as its factorization.

123250142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61625073.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 123250142 is about 11101.8080509438. The cubic root of 123250142 is about 497.6558834090.

The spelling of 123250142 in words is "one hundred twenty-three million, two hundred fifty thousand, one hundred forty-two".