138861285302 has 8 divisors (see below), whose sum is σ = 208737950616. Its totient is φ = 69281968432.

The previous prime is 138861285289. The next prime is 138861285341. The reversal of 138861285302 is 203582168831.

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

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, 74335943 + ... + 74337810.

It is an arithmetic number, because the mean of its divisors is an integer number (26092243827).

Almost surely, 2^138861285302 is an apocalyptic number.

138861285302 is a deficient number, since it is larger than the sum of its proper divisors (69876665314).

138861285302 is a wasteful number, since it uses less digits than its factorization.

138861285302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148674222.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 138861285302 in words is "one hundred thirty-eight billion, eight hundred sixty-one million, two hundred eighty-five thousand, three hundred two".