1012152005 has 4 divisors (see below), whose sum is σ = 1214582412. Its totient is φ = 809721600.

The previous prime is 1012151957. The next prime is 1012152013. The reversal of 1012152005 is 5002512101.

1012152005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5002512101 = 2251 ⋅2222351.

It can be written as a sum of positive squares in 2 ways, for example, as 201838849 + 810313156 = 14207^2 + 28466^2 .

It is not a de Polignac number, because 1012152005 - 2⁶ = 1012151941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101215196 + ... + 101215205.

It is an arithmetic number, because the mean of its divisors is an integer number (303645603).

Almost surely, 2^1012152005 is an apocalyptic number.

It is an amenable number.

1012152005 is a deficient number, since it is larger than the sum of its proper divisors (202430407).

1012152005 is an equidigital number, since it uses as much as digits as its factorization.

1012152005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202430406.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1012152005 is about 31814.3364695855. The cubic root of 1012152005 is about 1004.0343703016.

Adding to 1012152005 its reverse (5002512101), we get a palindrome (6014664106).

It can be divided in two parts, 10121 and 52005, that added together give a palindrome (62126).

The spelling of 1012152005 in words is "one billion, twelve million, one hundred fifty-two thousand, five".