138347134630 has 32 divisors (see below), whose sum is σ = 260228360448. Its totient is φ = 52856152800.

The previous prime is 138347134613. The next prime is 138347134633. The reversal of 138347134630 is 36431743831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138347134633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276316 + ... + 594175.

It is an arithmetic number, because the mean of its divisors is an integer number (8132136264).

Almost surely, 2^138347134630 is an apocalyptic number.

138347134630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138347134630 is a deficient number, since it is larger than the sum of its proper divisors (121881225818).

138347134630 is a wasteful number, since it uses less digits than its factorization.

138347134630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871212.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 138347134630 in words is "one hundred thirty-eight billion, three hundred forty-seven million, one hundred thirty-four thousand, six hundred thirty".