1071409541 has 2 divisors, whose sum is σ = 1071409542. Its totient is φ = 1071409540.

The previous prime is 1071409531. The next prime is 1071409561. The reversal of 1071409541 is 1459041701.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066022500 + 5387041 = 32650^2 + 2321^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071409541 - 2¹⁴ = 1071393157 is a prime.

It is a super-2 number, since 2×1071409541² = 2295836809091661362, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1071409498 and 1071409507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1071409531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535704770 + 535704771.

It is an arithmetic number, because the mean of its divisors is an integer number (535704771).

Almost surely, 2^1071409541 is an apocalyptic number.

It is an amenable number.

1071409541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071409541 is an equidigital number, since it uses as much as digits as its factorization.

1071409541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1071409541 is about 32732.3928395099. The cubic root of 1071409541 is about 1023.2580497432.

The spelling of 1071409541 in words is "one billion, seventy-one million, four hundred nine thousand, five hundred forty-one".