461668253 has 8 divisors (see below), whose sum is σ = 472856736. Its totient is φ = 450500400.

The previous prime is 461668247. The next prime is 461668267. The reversal of 461668253 is 352866164.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 461668253 - 2⁴ = 461668237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 461668253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461668223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46238 + ... + 55328.

It is an arithmetic number, because the mean of its divisors is an integer number (59107092).

Almost surely, 2^461668253 is an apocalyptic number.

461668253 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

461668253 is a deficient number, since it is larger than the sum of its proper divisors (11188483).

461668253 is a wasteful number, since it uses less digits than its factorization.

461668253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10315.

The product of its digits is 207360, while the sum is 41.

The square root of 461668253 is about 21486.4667407184. The cubic root of 461668253 is about 772.8763242907.

The spelling of 461668253 in words is "four hundred sixty-one million, six hundred sixty-eight thousand, two hundred fifty-three".