103138656 has 24 divisors (see below), whose sum is σ = 270739224. Its totient is φ = 34379520.

The previous prime is 103138627. The next prime is 103138709. The reversal of 103138656 is 656831301.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×103138656² = 21275164722972672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537085 + ... + 537276.

It is an arithmetic number, because the mean of its divisors is an integer number (11280801).

Almost surely, 2^103138656 is an apocalyptic number.

103138656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

103138656 is an abundant number, since it is smaller than the sum of its proper divisors (167600568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103138656 is a wasteful number, since it uses less digits than its factorization.

103138656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074374 (or 1074366 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 103138656 is about 10155.7203584975. The cubic root of 103138656 is about 468.9650624165.

Adding to 103138656 its reverse (656831301), we get a palindrome (759969957).

The spelling of 103138656 in words is "one hundred three million, one hundred thirty-eight thousand, six hundred fifty-six".