215134245439 has 8 divisors (see below), whose sum is σ = 222334431872. Its totient is φ = 207950332320.

The previous prime is 215134245419. The next prime is 215134245467. The reversal of 215134245439 is 934542431512.

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 215134245439 - 2⁵ = 215134245407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215134245395 and 215134245404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215134245419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4041444 + ... + 4094329.

It is an arithmetic number, because the mean of its divisors is an integer number (27791803984).

Almost surely, 2^215134245439 is an apocalyptic number.

215134245439 is a deficient number, since it is larger than the sum of its proper divisors (7200186433).

215134245439 is an equidigital number, since it uses as much as digits as its factorization.

215134245439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136657.

The product of its digits is 518400, while the sum is 43.

The spelling of 215134245439 in words is "two hundred fifteen billion, one hundred thirty-four million, two hundred forty-five thousand, four hundred thirty-nine".