138702182 has 4 divisors (see below), whose sum is σ = 208053276. Its totient is φ = 69351090.

The previous prime is 138702131. The next prime is 138702197. The reversal of 138702182 is 281207831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 281207831 = 43 ⋅6539717.

It is a super-2 number, since 2×138702182² = 38476590583122248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34675544 + ... + 34675547.

It is an arithmetic number, because the mean of its divisors is an integer number (52013319).

Almost surely, 2^138702182 is an apocalyptic number.

138702182 is a deficient number, since it is larger than the sum of its proper divisors (69351094).

138702182 is an equidigital number, since it uses as much as digits as its factorization.

138702182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69351093.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 138702182 is about 11777.1890534202. The cubic root of 138702182 is about 517.6399235784.

The spelling of 138702182 in words is "one hundred thirty-eight million, seven hundred two thousand, one hundred eighty-two".