103140648 has 128 divisors (see below), whose sum is σ = 322156800. Its totient is φ = 30336768.

The previous prime is 103140643. The next prime is 103140659. The reversal of 103140648 is 846041301.

103140648 is a `hidden beast` number, since 1 + 0 + 3 + 14 + 0 + 648 = 666.

It is a super-3 number, since 3×103140648³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (103140643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63786 + ... + 65382.

It is an arithmetic number, because the mean of its divisors is an integer number (2516850).

Almost surely, 2^103140648 is an apocalyptic number.

103140648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103140648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161078400).

103140648 is an abundant number, since it is smaller than the sum of its proper divisors (219016152).

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

103140648 is a wasteful number, since it uses less digits than its factorization.

103140648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 103140648 is about 10155.8184308307. The cubic root of 103140648 is about 468.9680815639.

Adding to 103140648 its reverse (846041301), we get a palindrome (949181949).

The spelling of 103140648 in words is "one hundred three million, one hundred forty thousand, six hundred forty-eight".