133521463253 has 8 divisors (see below), whose sum is σ = 139388914368. Its totient is φ = 127659193024.

The previous prime is 133521463249. The next prime is 133521463321. The reversal of 133521463253 is 352364125331.

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 133521463253 - 2² = 133521463249 is a prime.

It is a super-2 number, since 2×133521463253² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133521463853) 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, 1242500 + ... + 1345677.

It is an arithmetic number, because the mean of its divisors is an integer number (17423614296).

Almost surely, 2^133521463253 is an apocalyptic number.

It is an amenable number.

133521463253 is a deficient number, since it is larger than the sum of its proper divisors (5867451115).

133521463253 is a wasteful number, since it uses less digits than its factorization.

133521463253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590443.

The product of its digits is 194400, while the sum is 38.

Adding to 133521463253 its reverse (352364125331), we get a palindrome (485885588584).

The spelling of 133521463253 in words is "one hundred thirty-three billion, five hundred twenty-one million, four hundred sixty-three thousand, two hundred fifty-three".