123800146 has 8 divisors (see below), whose sum is σ = 185952384. Its totient is φ = 61816020.

The previous prime is 123800141. The next prime is 123800147. The reversal of 123800146 is 641008321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×123800146² = 30652952299242632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123800146.

It is not an unprimeable number, because it can be changed into a prime (123800141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40170 + ... + 43141.

It is an arithmetic number, because the mean of its divisors is an integer number (23244048).

Almost surely, 2^123800146 is an apocalyptic number.

123800146 is a deficient number, since it is larger than the sum of its proper divisors (62152238).

123800146 is an equidigital number, since it uses as much as digits as its factorization.

123800146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84056.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 123800146 is about 11126.5513974457. The cubic root of 123800146 is about 498.3950484398.

Adding to 123800146 its reverse (641008321), we get a palindrome (764808467).

The spelling of 123800146 in words is "one hundred twenty-three million, eight hundred thousand, one hundred forty-six".