138003046 has 8 divisors (see below), whose sum is σ = 209625120. Its totient is φ = 68128008.

The previous prime is 138003037. The next prime is 138003053. The reversal of 138003046 is 640300831.

138003046 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 138003046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436561 + ... + 436876.

It is an arithmetic number, because the mean of its divisors is an integer number (26203140).

Almost surely, 2^138003046 is an apocalyptic number.

138003046 is a deficient number, since it is larger than the sum of its proper divisors (71622074).

138003046 is an equidigital number, since it uses as much as digits as its factorization.

138003046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873518.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 138003046 is about 11747.4697701250. The cubic root of 138003046 is about 516.7687273001.

Adding to 138003046 its reverse (640300831), we get a palindrome (778303877).

The spelling of 138003046 in words is "one hundred thirty-eight million, three thousand, forty-six".