215030243529 has 24 divisors (see below), whose sum is σ = 324812896512. Its totient is φ = 136820629440.

The previous prime is 215030243513. The next prime is 215030243531. The reversal of 215030243529 is 925342030512.

215030243529 is a `hidden beast` number, since 215 + 0 + 3 + 0 + 2 + 435 + 2 + 9 = 666.

It is not a de Polignac number, because 215030243529 - 2⁴ = 215030243513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215030243493 and 215030243502.

It is not an unprimeable number, because it can be changed into a prime (215030243599) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1041937 + ... + 1231134.

It is an arithmetic number, because the mean of its divisors is an integer number (13533870688).

Almost surely, 2^215030243529 is an apocalyptic number.

It is an amenable number.

215030243529 is a deficient number, since it is larger than the sum of its proper divisors (109782652983).

215030243529 is a wasteful number, since it uses less digits than its factorization.

215030243529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273557 (or 2273554 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 215030243529 in words is "two hundred fifteen billion, thirty million, two hundred forty-three thousand, five hundred twenty-nine".