138252044030 has 32 divisors (see below), whose sum is σ = 261974714400. Its totient is φ = 52385553792.

The previous prime is 138252044003. The next prime is 138252044039. The reversal of 138252044030 is 30440252831.

138252044030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×138252044030² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138252044039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2690216 + ... + 2741124.

It is an arithmetic number, because the mean of its divisors is an integer number (8186709825).

Almost surely, 2^138252044030 is an apocalyptic number.

138252044030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138252044030 is a deficient number, since it is larger than the sum of its proper divisors (123722670370).

138252044030 is a wasteful number, since it uses less digits than its factorization.

138252044030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65228.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 138252044030 its reverse (30440252831), we get a palindrome (168692296861).

The spelling of 138252044030 in words is "one hundred thirty-eight billion, two hundred fifty-two million, forty-four thousand, thirty".