215432240033 has 4 divisors (see below), whose sum is σ = 215619086148. Its totient is φ = 215245393920.

The previous prime is 215432240029. The next prime is 215432240071. The reversal of 215432240033 is 330042234512.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 182152264849 + 33279975184 = 426793^2 + 182428^2 .

It is a cyclic number.

It is not a de Polignac number, because 215432240033 - 2² = 215432240029 is a prime.

It is a super-2 number, since 2×215432240033² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215432239978 and 215432240005.

It is not an unprimeable number, because it can be changed into a prime (215432240003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93421328 + ... + 93423633.

It is an arithmetic number, because the mean of its divisors is an integer number (53904771537).

Almost surely, 2^215432240033 is an apocalyptic number.

It is an amenable number.

215432240033 is a deficient number, since it is larger than the sum of its proper divisors (186846115).

215432240033 is a wasteful number, since it uses less digits than its factorization.

215432240033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186846114.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 215432240033 its reverse (330042234512), we get a palindrome (545474474545).

The spelling of 215432240033 in words is "two hundred fifteen billion, four hundred thirty-two million, two hundred forty thousand, thirty-three".