1002162506 has 4 divisors (see below), whose sum is σ = 1503243762. Its totient is φ = 501081252.

The previous prime is 1002162487. The next prime is 1002162521. The reversal of 1002162506 is 6052612001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6052612001 = 337 ⋅17960273.

It can be written as a sum of positive squares in only one way, i.e., 654899281 + 347263225 = 25591^2 + 18635^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250540625 + ... + 250540628.

Almost surely, 2^1002162506 is an apocalyptic number.

1002162506 is a deficient number, since it is larger than the sum of its proper divisors (501081256).

1002162506 is an equidigital number, since it uses as much as digits as its factorization.

1002162506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501081255.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1002162506 is about 31656.9503584916. The cubic root of 1002162506 is about 1000.7203163531.

Adding to 1002162506 its reverse (6052612001), we get a palindrome (7054774507).

It can be divided in two parts, 10021 and 62506, that added together give a palindrome (72527).

The spelling of 1002162506 in words is "one billion, two million, one hundred sixty-two thousand, five hundred six".