138837610 has 8 divisors (see below), whose sum is σ = 249907716. Its totient is φ = 55535040.

The previous prime is 138837539. The next prime is 138837641. The reversal of 138837610 is 16738831.

138837610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 117094041 + 21743569 = 10821^2 + 4663^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 138837610.

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, 6941871 + ... + 6941890.

Almost surely, 2^138837610 is an apocalyptic number.

138837610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138837610 is a deficient number, since it is larger than the sum of its proper divisors (111070106).

138837610 is a wasteful number, since it uses less digits than its factorization.

138837610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13883768.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 138837610 is about 11782.9372399245. The cubic root of 138837610 is about 517.8083423081.

The spelling of 138837610 in words is "one hundred thirty-eight million, eight hundred thirty-seven thousand, six hundred ten".