450001142 has 16 divisors (see below), whose sum is σ = 687337920. Its totient is φ = 220898568.

The previous prime is 450001133. The next prime is 450001151. The reversal of 450001142 is 241100054.

It is an interprime number because it is at equal distance from previous prime (450001133) and next prime (450001151).

It is a self number, because there is not a number n which added to its sum of digits gives 450001142.

It is a congruent number.

It is an unprimeable number.

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, 109733 + ... + 113759.

It is an arithmetic number, because the mean of its divisors is an integer number (42958620).

Almost surely, 2^450001142 is an apocalyptic number.

450001142 is a deficient number, since it is larger than the sum of its proper divisors (237336778).

450001142 is a wasteful number, since it uses less digits than its factorization.

450001142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 450001142 is about 21213.2303527775. The cubic root of 450001142 is about 766.3100806340.

Adding to 450001142 its reverse (241100054), we get a palindrome (691101196).

The spelling of 450001142 in words is "four hundred fifty million, one thousand, one hundred forty-two".