103240144 has 20 divisors (see below), whose sum is σ = 228603424. Its totient is φ = 44245728.

The previous prime is 103240141. The next prime is 103240171. The reversal of 103240144 is 441042301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103240141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460782 + ... + 461005.

Almost surely, 2^103240144 is an apocalyptic number.

103240144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

103240144 is an abundant number, since it is smaller than the sum of its proper divisors (125363280).

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

103240144 is an equidigital number, since it uses as much as digits as its factorization.

103240144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921802 (or 921796 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 103240144 is about 10160.7157228219. The cubic root of 103240144 is about 469.1188318688.

Adding to 103240144 its reverse (441042301), we get a palindrome (544282445).

The spelling of 103240144 in words is "one hundred three million, two hundred forty thousand, one hundred forty-four".