103040561 has 16 divisors (see below), whose sum is σ = 112896000. Its totient is φ = 93477888.

The previous prime is 103040549. The next prime is 103040563. The reversal of 103040561 is 165040301.

It is a cyclic number.

It is not a de Polignac number, because 103040561 - 2²² = 98846257 is a prime.

It is a super-2 number, since 2×103040561² = 21234714422389442, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (103040563) 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, 229265 + ... + 229713.

It is an arithmetic number, because the mean of its divisors is an integer number (7056000).

Almost surely, 2^103040561 is an apocalyptic number.

It is an amenable number.

103040561 is a deficient number, since it is larger than the sum of its proper divisors (9855439).

103040561 is a wasteful number, since it uses less digits than its factorization.

103040561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 103040561 is about 10150.8896654431. The cubic root of 103040561 is about 468.8163379654.

Adding to 103040561 its reverse (165040301), we get a palindrome (268080862).

The spelling of 103040561 in words is "one hundred three million, forty thousand, five hundred sixty-one".