103145744 has 20 divisors (see below), whose sum is σ = 215217996. Its totient is φ = 47605632.

The previous prime is 103145743. The next prime is 103145759. The reversal of 103145744 is 447541301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30691600 + 72454144 = 5540^2 + 8512^2 .

It is not an unprimeable number, because it can be changed into a prime (103145743) 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, 247739 + ... + 248154.

Almost surely, 2^103145744 is an apocalyptic number.

It is an amenable number.

103145744 is an abundant number, since it is smaller than the sum of its proper divisors (112072252).

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

103145744 is a wasteful number, since it uses less digits than its factorization.

103145744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495914 (or 495908 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 103145744 is about 10156.0693183928. The cubic root of 103145744 is about 468.9758050690.

The spelling of 103145744 in words is "one hundred three million, one hundred forty-five thousand, seven hundred forty-four".