144762138 has 24 divisors (see below), whose sum is σ = 327289248. Its totient is φ = 46155912.

The previous prime is 144762131. The next prime is 144762151. The reversal of 144762138 is 831267441.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (144762131) 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 11 ways as a sum of consecutive naturals, for example, 174420 + ... + 175247.

It is an arithmetic number, because the mean of its divisors is an integer number (13637052).

Almost surely, 2^144762138 is an apocalyptic number.

144762138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

144762138 is an abundant number, since it is smaller than the sum of its proper divisors (182527110).

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

144762138 is a wasteful number, since it uses less digits than its factorization.

144762138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349698 (or 349695 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 144762138 is about 12031.7138430067. The cubic root of 144762138 is about 525.0713590078.

The spelling of 144762138 in words is "one hundred forty-four million, seven hundred sixty-two thousand, one hundred thirty-eight".