138741484 has 24 divisors (see below), whose sum is σ = 278062848. Its totient is φ = 59336400.

The previous prime is 138741479. The next prime is 138741487. The reversal of 138741484 is 484147831.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (138741487) 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 7 ways as a sum of consecutive naturals, for example, 9159 + ... + 19009.

It is an arithmetic number, because the mean of its divisors is an integer number (11585952).

Almost surely, 2^138741484 is an apocalyptic number.

138741484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

138741484 is an abundant number, since it is smaller than the sum of its proper divisors (139321364).

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

138741484 is a wasteful number, since it uses less digits than its factorization.

138741484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10365 (or 10363 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 138741484 is about 11778.8574997748. The cubic root of 138741484 is about 517.6888109685.

The spelling of 138741484 in words is "one hundred thirty-eight million, seven hundred forty-one thousand, four hundred eighty-four".