103135640 has 16 divisors (see below), whose sum is σ = 232055280. Its totient is φ = 41254240.

The previous prime is 103135631. The next prime is 103135661. The reversal of 103135640 is 46531301.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 1289156 + ... + 1289235.

It is an arithmetic number, because the mean of its divisors is an integer number (14503455).

Almost surely, 2^103135640 is an apocalyptic number.

103135640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103135640 is an abundant number, since it is smaller than the sum of its proper divisors (128919640).

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

103135640 is a wasteful number, since it uses less digits than its factorization.

103135640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578402 (or 2578398 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 103135640 is about 10155.5718696684. The cubic root of 103135640 is about 468.9604911838.

Adding to 103135640 its reverse (46531301), we get a palindrome (149666941).

The spelling of 103135640 in words is "one hundred three million, one hundred thirty-five thousand, six hundred forty".