123029144 has 32 divisors (see below), whose sum is σ = 270763680. Its totient is φ = 51300864.

The previous prime is 123029141. The next prime is 123029171. The reversal of 123029144 is 441920321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123029141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27617 + ... + 31760.

It is an arithmetic number, because the mean of its divisors is an integer number (8461365).

Almost surely, 2^123029144 is an apocalyptic number.

123029144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123029144 is an abundant number, since it is smaller than the sum of its proper divisors (147734536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123029144 is a wasteful number, since it uses less digits than its factorization.

123029144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59427 (or 59423 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 123029144 is about 11091.8503415796. The cubic root of 123029144 is about 497.3582589904.

Adding to 123029144 its reverse (441920321), we get a palindrome (564949465).

The spelling of 123029144 in words is "one hundred twenty-three million, twenty-nine thousand, one hundred forty-four".