133451411 has 4 divisors (see below), whose sum is σ = 141301512. Its totient is φ = 125601312.

The previous prime is 133451393. The next prime is 133451419. The reversal of 133451411 is 114154331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114154331 = 127 ⋅898853.

It is a cyclic number.

It is not a de Polignac number, because 133451411 - 2¹⁸ = 133189267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133451419) 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, 3925025 + ... + 3925058.

It is an arithmetic number, because the mean of its divisors is an integer number (35325378).

Almost surely, 2^133451411 is an apocalyptic number.

133451411 is a deficient number, since it is larger than the sum of its proper divisors (7850101).

133451411 is an equidigital number, since it uses as much as digits as its factorization.

133451411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7850100.

The product of its digits is 720, while the sum is 23.

The square root of 133451411 is about 11552.1171652646. The cubic root of 133451411 is about 511.0237171499.

The spelling of 133451411 in words is "one hundred thirty-three million, four hundred fifty-one thousand, four hundred eleven".