138148502 has 8 divisors (see below), whose sum is σ = 207326136. Its totient is φ = 69039792.

The previous prime is 138148499. The next prime is 138148519. The reversal of 138148502 is 205841831.

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, 11888 + ... + 20435.

It is an arithmetic number, because the mean of its divisors is an integer number (25915767).

Almost surely, 2^138148502 is an apocalyptic number.

138148502 is a deficient number, since it is larger than the sum of its proper divisors (69177634).

138148502 is a wasteful number, since it uses less digits than its factorization.

138148502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34462.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 138148502 is about 11753.6590898324. The cubic root of 138148502 is about 516.9502226143.

The spelling of 138148502 in words is "one hundred thirty-eight million, one hundred forty-eight thousand, five hundred two".