103112640 has 84 divisors (see below), whose sum is σ = 354674424. Its totient is φ = 27495936.

The previous prime is 103112629. The next prime is 103112651. The reversal of 103112640 is 46211301.

It is a happy number.

103112640 is a `hidden beast` number, since 10 + 3 + 1 + 12 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (103112629) and next prime (103112651).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 15022 + ... + 20781.

Almost surely, 2^103112640 is an apocalyptic number.

103112640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103112640 is an abundant number, since it is smaller than the sum of its proper divisors (251561784).

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

103112640 is a wasteful number, since it uses less digits than its factorization.

103112640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35826 (or 35813 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 103112640 is about 10154.4394232277. The cubic root of 103112640 is about 468.9256280553.

Adding to 103112640 its reverse (46211301), we get a palindrome (149323941).

The spelling of 103112640 in words is "one hundred three million, one hundred twelve thousand, six hundred forty".