138507002 has 8 divisors (see below), whose sum is σ = 207866496. Its totient is φ = 69218172.

The previous prime is 138506969. The next prime is 138507011. The reversal of 138507002 is 200705831.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12458 + ... + 20789.

It is an arithmetic number, because the mean of its divisors is an integer number (25983312).

Almost surely, 2^138507002 is an apocalyptic number.

138507002 is a deficient number, since it is larger than the sum of its proper divisors (69359494).

138507002 is a wasteful number, since it uses less digits than its factorization.

138507002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35332.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 138507002 is about 11768.8997786539. The cubic root of 138507002 is about 517.3970040927.

The spelling of 138507002 in words is "one hundred thirty-eight million, five hundred seven thousand, two".