1015413253 has 4 divisors (see below), whose sum is σ = 1019626828. Its totient is φ = 1011199680.

The previous prime is 1015413229. The next prime is 1015413263. The reversal of 1015413253 is 3523145101.

It is a happy number.

1015413253 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.

It can be written as a sum of positive squares in 2 ways, for example, as 550277764 + 465135489 = 23458^2 + 21567^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015413253 - 2¹⁷ = 1015282181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015413263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106426 + ... + 2106907.

It is an arithmetic number, because the mean of its divisors is an integer number (254906707).

Almost surely, 2^1015413253 is an apocalyptic number.

It is an amenable number.

1015413253 is a deficient number, since it is larger than the sum of its proper divisors (4213575).

1015413253 is an equidigital number, since it uses as much as digits as its factorization.

1015413253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213574.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1015413253 is about 31865.5496265167. The cubic root of 1015413253 is about 1005.1115782490. Note that the first 3 decimals are identical.

Adding to 1015413253 its reverse (3523145101), we get a palindrome (4538558354).

The spelling of 1015413253 in words is "one billion, fifteen million, four hundred thirteen thousand, two hundred fifty-three".