138102046 has 8 divisors (see below), whose sum is σ = 208986624. Its totient is φ = 68439840.

The previous prime is 138102043. The next prime is 138102049. The reversal of 138102046 is 640201831.

It is an interprime number because it is at equal distance from previous prime (138102043) and next prime (138102049).

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

It is a super-2 number, since 2×138102046² = 38144350218772232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138102046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138102043) by changing a digit.

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, 305310 + ... + 305761.

It is an arithmetic number, because the mean of its divisors is an integer number (26123328).

Almost surely, 2^138102046 is an apocalyptic number.

138102046 is a deficient number, since it is larger than the sum of its proper divisors (70884578).

138102046 is a wasteful number, since it uses less digits than its factorization.

138102046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611186.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 138102046 is about 11751.6826880239. The cubic root of 138102046 is about 516.8922701655.

Adding to 138102046 its reverse (640201831), we get a palindrome (778303877).

The spelling of 138102046 in words is "one hundred thirty-eight million, one hundred two thousand, forty-six".