103138745 has 16 divisors (see below), whose sum is σ = 137946240. Its totient is φ = 73569024.

The previous prime is 103138733. The next prime is 103138747. The reversal of 103138745 is 547831301.

It is a cyclic number.

It is not a de Polignac number, because 103138745 - 2⁸ = 103138489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103138747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30317 + ... + 33546.

It is an arithmetic number, because the mean of its divisors is an integer number (8621640).

Almost surely, 2^103138745 is an apocalyptic number.

It is an amenable number.

103138745 is a deficient number, since it is larger than the sum of its proper divisors (34807495).

103138745 is a wasteful number, since it uses less digits than its factorization.

103138745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63904.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 103138745 is about 10155.7247402635. The cubic root of 103138745 is about 468.9651973090.

The spelling of 103138745 in words is "one hundred three million, one hundred thirty-eight thousand, seven hundred forty-five".