103071561 has 24 divisors (see below), whose sum is σ = 153696480. Its totient is φ = 61258752.

The previous prime is 103071557. The next prime is 103071571. The reversal of 103071561 is 165170301.

It is not a de Polignac number, because 103071561 - 2² = 103071557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103071571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13345 + ... + 19601.

It is an arithmetic number, because the mean of its divisors is an integer number (6404020).

Almost surely, 2^103071561 is an apocalyptic number.

It is an amenable number.

103071561 is a deficient number, since it is larger than the sum of its proper divisors (50624919).

103071561 is a wasteful number, since it uses less digits than its factorization.

103071561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313 (or 6296 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 103071561 is about 10152.4165103684. The cubic root of 103071561 is about 468.8633480914.

The spelling of 103071561 in words is "one hundred three million, seventy-one thousand, five hundred sixty-one".