1001143454 has 4 divisors (see below), whose sum is σ = 1501715184. Its totient is φ = 500571726.

The previous prime is 1001143433. The next prime is 1001143463. The reversal of 1001143454 is 4543411001.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250285862 + ... + 250285865.

It is an arithmetic number, because the mean of its divisors is an integer number (375428796).

Almost surely, 2^1001143454 is an apocalyptic number.

1001143454 is a deficient number, since it is larger than the sum of its proper divisors (500571730).

1001143454 is an equidigital number, since it uses as much as digits as its factorization.

1001143454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500571729.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1001143454 is about 31640.8510315383. The cubic root of 1001143454 is about 1000.3810061492.

Adding to 1001143454 its reverse (4543411001), we get a palindrome (5544554455).

The spelling of 1001143454 in words is "one billion, one million, one hundred forty-three thousand, four hundred fifty-four".