133454387 has 4 divisors (see below), whose sum is σ = 145586616. Its totient is φ = 121322160.

The previous prime is 133454381. The next prime is 133454389. The reversal of 133454387 is 783454331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783454331 = 11 ⋅71223121.

It is a cyclic number.

It is not a de Polignac number, because 133454387 - 2⁶ = 133454323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133454387.

It is not an unprimeable number, because it can be changed into a prime (133454381) 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, 6066098 + ... + 6066119.

It is an arithmetic number, because the mean of its divisors is an integer number (36396654).

Almost surely, 2^133454387 is an apocalyptic number.

133454387 is a deficient number, since it is larger than the sum of its proper divisors (12132229).

133454387 is a wasteful number, since it uses less digits than its factorization.

133454387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12132228.

The product of its digits is 120960, while the sum is 38.

The square root of 133454387 is about 11552.2459721043. The cubic root of 133454387 is about 511.0275157741.

The spelling of 133454387 in words is "one hundred thirty-three million, four hundred fifty-four thousand, three hundred eighty-seven".