450512101 has 4 divisors (see below), whose sum is σ = 485166892. Its totient is φ = 415857312.

The previous prime is 450512099. The next prime is 450512113. The reversal of 450512101 is 101215054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 203205025 + 247307076 = 14255^2 + 15726^2 .

It is not a de Polignac number, because 450512101 - 2¹ = 450512099 is a prime.

It is a super-2 number, since 2×450512101² = 405922306294868402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450512171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17327376 + ... + 17327401.

It is an arithmetic number, because the mean of its divisors is an integer number (121291723).

Almost surely, 2^450512101 is an apocalyptic number.

It is an amenable number.

450512101 is a deficient number, since it is larger than the sum of its proper divisors (34654791).

450512101 is a wasteful number, since it uses less digits than its factorization.

450512101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34654790.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 450512101 is about 21225.2703398567. The cubic root of 450512101 is about 766.6000094746.

Adding to 450512101 its reverse (101215054), we get a palindrome (551727155).

The spelling of 450512101 in words is "four hundred fifty million, five hundred twelve thousand, one hundred one".