215355041 has 4 divisors (see below), whose sum is σ = 234932784. Its totient is φ = 195777300.

The previous prime is 215355029. The next prime is 215355089. The reversal of 215355041 is 140553512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 215355041 - 2¹⁴ = 215338657 is a prime.

It is a super-2 number, since 2×215355041² = 92755587368223362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 215355041.

It is not an unprimeable number, because it can be changed into a prime (215355011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9788855 + ... + 9788876.

It is an arithmetic number, because the mean of its divisors is an integer number (58733196).

Almost surely, 2^215355041 is an apocalyptic number.

It is an amenable number.

215355041 is a deficient number, since it is larger than the sum of its proper divisors (19577743).

215355041 is a wasteful number, since it uses less digits than its factorization.

215355041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19577742.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 215355041 is about 14674.9801022012. The cubic root of 215355041 is about 599.4022203711.

The spelling of 215355041 in words is "two hundred fifteen million, three hundred fifty-five thousand, forty-one".