1002051051 has 16 divisors (see below), whose sum is σ = 1467536640. Its totient is φ = 605357280.

The previous prime is 1002051049. The next prime is 1002051067. The reversal of 1002051051 is 1501502001.

It is not a de Polignac number, because 1002051051 - 2¹ = 1002051049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002051051.

It is not an unprimeable number, because it can be changed into a prime (1002051091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380860 + ... + 383481.

It is an arithmetic number, because the mean of its divisors is an integer number (91721040).

Almost surely, 2^1002051051 is an apocalyptic number.

1002051051 is the 20021-st centered pentagonal number.

1002051051 is a deficient number, since it is larger than the sum of its proper divisors (465485589).

1002051051 is a wasteful number, since it uses less digits than its factorization.

1002051051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764386.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1002051051 is about 31655.1899536237. The cubic root of 1002051051 is about 1000.6832167752.

Adding to 1002051051 its reverse (1501502001), we get a palindrome (2503553052).

The spelling of 1002051051 in words is "one billion, two million, fifty-one thousand, fifty-one".