1461236253 has 16 divisors (see below), whose sum is σ = 2103131520. Its totient is φ = 899670464.

The previous prime is 1461236221. The next prime is 1461236297. The reversal of 1461236253 is 3526321641.

It is a cyclic number.

It is not a de Polignac number, because 1461236253 - 2⁵ = 1461236221 is a prime.

It is a super-2 number, since 2×1461236253² = 4270422774162960018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461236353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363126 + ... + 367127.

It is an arithmetic number, because the mean of its divisors is an integer number (131445720).

Almost surely, 2^1461236253 is an apocalyptic number.

It is an amenable number.

1461236253 is a deficient number, since it is larger than the sum of its proper divisors (641895267).

1461236253 is a wasteful number, since it uses less digits than its factorization.

1461236253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730308.

The product of its digits is 25920, while the sum is 33.

The square root of 1461236253 is about 38226.1200359126. The cubic root of 1461236253 is about 1134.7673009078.

Adding to 1461236253 its reverse (3526321641), we get a palindrome (4987557894).

The spelling of 1461236253 in words is "one billion, four hundred sixty-one million, two hundred thirty-six thousand, two hundred fifty-three".