133451113 has 4 divisors (see below), whose sum is σ = 133479568. Its totient is φ = 133422660.

The previous prime is 133451111. The next prime is 133451137. The reversal of 133451113 is 311154331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311154331 = 9109 ⋅34159.

It is a cyclic number.

It is not a de Polignac number, because 133451113 - 2¹ = 133451111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133451111) 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, 5343 + ... + 17188.

It is an arithmetic number, because the mean of its divisors is an integer number (33369892).

Almost surely, 2^133451113 is an apocalyptic number.

It is an amenable number.

133451113 is a deficient number, since it is larger than the sum of its proper divisors (28455).

133451113 is an equidigital number, since it uses as much as digits as its factorization.

133451113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28454.

The product of its digits is 540, while the sum is 22.

The square root of 133451113 is about 11552.1042671887. The cubic root of 133451113 is about 511.0233367738.

The spelling of 133451113 in words is "one hundred thirty-three million, four hundred fifty-one thousand, one hundred thirteen".