103144400 has 30 divisors (see below), whose sum is σ = 247805382. Its totient is φ = 41257600.

The previous prime is 103144381. The next prime is 103144403. The reversal of 103144400 is 4441301.

It can be written as a sum of positive squares in 3 ways, for example, as 64 + 103144336 = 8^2 + 10156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103144403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128531 + ... + 129330.

Almost surely, 2^103144400 is an apocalyptic number.

103144400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103144400 is an abundant number, since it is smaller than the sum of its proper divisors (144660982).

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

103144400 is a wasteful number, since it uses less digits than its factorization.

103144400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257879 (or 257868 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 103144400 is about 10156.0031508463. The cubic root of 103144400 is about 468.9737681253.

Adding to 103144400 its reverse (4441301), we get a palindrome (107585701).

The spelling of 103144400 in words is "one hundred three million, one hundred forty-four thousand, four hundred".