215041450 has 48 divisors (see below), whose sum is σ = 439971840. Its totient is φ = 77699520.

The previous prime is 215041441. The next prime is 215041459. The reversal of 215041450 is 54140512.

It is an interprime number because it is at equal distance from previous prime (215041441) and next prime (215041459).

It is not an unprimeable number, because it can be changed into a prime (215041459) 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 23 ways as a sum of consecutive naturals, for example, 27031 + ... + 34069.

It is an arithmetic number, because the mean of its divisors is an integer number (9166080).

Almost surely, 2^215041450 is an apocalyptic number.

215041450 is an abundant number, since it is smaller than the sum of its proper divisors (224930390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215041450 is a wasteful number, since it uses less digits than its factorization.

215041450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7111 (or 7106 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 215041450 is about 14664.2916637661. The cubic root of 215041450 is about 599.1111375599. Note that the first 4 decimals are identical.

Adding to 215041450 its reverse (54140512), we get a palindrome (269181962).

The spelling of 215041450 in words is "two hundred fifteen million, forty-one thousand, four hundred fifty".