215213469 has 8 divisors (see below), whose sum is σ = 293950272. Its totient is φ = 139976160.

The previous prime is 215213441. The next prime is 215213473. The reversal of 215213469 is 964312512.

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

It is not a de Polignac number, because 215213469 - 2⁸ = 215213213 is a prime.

It is a super-2 number, since 2×215213469² = 92633674478027922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215213419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874729 + ... + 874974.

It is an arithmetic number, because the mean of its divisors is an integer number (36743784).

Almost surely, 2^215213469 is an apocalyptic number.

It is an amenable number.

215213469 is a deficient number, since it is larger than the sum of its proper divisors (78736803).

215213469 is a wasteful number, since it uses less digits than its factorization.

215213469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749747.

The product of its digits is 12960, while the sum is 33.

The square root of 215213469 is about 14670.1557251448. The cubic root of 215213469 is about 599.2708448023.

The spelling of 215213469 in words is "two hundred fifteen million, two hundred thirteen thousand, four hundred sixty-nine".