70566541 has 8 divisors (see below), whose sum is σ = 77294520. Its totient is φ = 64124928.

The previous prime is 70566539. The next prime is 70566557. The reversal of 70566541 is 14566507.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2090916 + 68475625 = 1446^2 + 8275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70566541 - 2¹ = 70566539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70566497 and 70566506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70566521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71076 + ... + 72061.

It is an arithmetic number, because the mean of its divisors is an integer number (9661815).

Almost surely, 2^70566541 is an apocalyptic number.

It is an amenable number.

70566541 is a deficient number, since it is larger than the sum of its proper divisors (6727979).

70566541 is a wasteful number, since it uses less digits than its factorization.

70566541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143183.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 70566541 is about 8400.3893362153. The cubic root of 70566541 is about 413.2373900767.

Subtracting from 70566541 its sum of digits (34), we obtain a palindrome (70566507).

The spelling of 70566541 in words is "seventy million, five hundred sixty-six thousand, five hundred forty-one".