1001142673 has 2 divisors, whose sum is σ = 1001142674. Its totient is φ = 1001142672.

The previous prime is 1001142557. The next prime is 1001142683. The reversal of 1001142673 is 3762411001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 999634689 + 1507984 = 31617^2 + 1228^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001142673 - 2¹⁷ = 1001011601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001142683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500571336 + 500571337.

It is an arithmetic number, because the mean of its divisors is an integer number (500571337).

Almost surely, 2^1001142673 is an apocalyptic number.

It is an amenable number.

1001142673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001142673 is an equidigital number, since it uses as much as digits as its factorization.

1001142673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1001142673 is about 31640.8386898957. The cubic root of 1001142673 is about 1000.3807460141.

Adding to 1001142673 its reverse (3762411001), we get a palindrome (4763553674).

The spelling of 1001142673 in words is "one billion, one million, one hundred forty-two thousand, six hundred seventy-three".