1001009162 has 4 divisors (see below), whose sum is σ = 1501513746. Its totient is φ = 500504580.

The previous prime is 1001009161. The next prime is 1001009173. The reversal of 1001009162 is 2619001001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2619001001 = 499 ⋅5248499.

It can be written as a sum of positive squares in only one way, i.e., 544802281 + 456206881 = 23341^2 + 21359^2 .

It is not an unprimeable number, because it can be changed into a prime (1001009161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250252289 + ... + 250252292.

Almost surely, 2^1001009162 is an apocalyptic number.

1001009162 is a deficient number, since it is larger than the sum of its proper divisors (500504584).

1001009162 is an equidigital number, since it uses as much as digits as its factorization.

1001009162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500504583.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1001009162 is about 31638.7288303434. The cubic root of 1001009162 is about 1000.3362742403.

The spelling of 1001009162 in words is "one billion, one million, nine thousand, one hundred sixty-two".