450213155 has 32 divisors (see below), whose sum is σ = 665100288. Its totient is φ = 285753600.

The previous prime is 450213149. The next prime is 450213157. The reversal of 450213155 is 551312054.

It is not a de Polignac number, because 450213155 - 2¹⁶ = 450147619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (450213157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15935 + ... + 33975.

It is an arithmetic number, because the mean of its divisors is an integer number (20784384).

Almost surely, 2^450213155 is an apocalyptic number.

450213155 is a deficient number, since it is larger than the sum of its proper divisors (214887133).

450213155 is a wasteful number, since it uses less digits than its factorization.

450213155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18107.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 450213155 is about 21218.2269523163. The cubic root of 450213155 is about 766.4304078774.

The spelling of 450213155 in words is "four hundred fifty million, two hundred thirteen thousand, one hundred fifty-five".