69409541 has 2 divisors, whose sum is σ = 69409542. Its totient is φ = 69409540.

The previous prime is 69409517. The next prime is 69409567. The reversal of 69409541 is 14590496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59737441 + 9672100 = 7729^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 69409541 - 2⁶ = 69409477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69409495 and 69409504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69409841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34704770 + 34704771.

It is an arithmetic number, because the mean of its divisors is an integer number (34704771).

Almost surely, 2^69409541 is an apocalyptic number.

It is an amenable number.

69409541 is a deficient number, since it is larger than the sum of its proper divisors (1).

69409541 is an equidigital number, since it uses as much as digits as its factorization.

69409541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 69409541 is about 8331.2388634584. The cubic root of 69409541 is about 410.9664707445.

The spelling of 69409541 in words is "sixty-nine million, four hundred nine thousand, five hundred forty-one".