133154311 has 4 divisors (see below), whose sum is σ = 133497000. Its totient is φ = 132811624.

The previous prime is 133154267. The next prime is 133154317. The reversal of 133154311 is 113451331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113451331 = 7 ⋅16207333.

It is a cyclic number.

It is not a de Polignac number, because 133154311 - 2¹³ = 133146119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133154317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170761 + ... + 171538.

It is an arithmetic number, because the mean of its divisors is an integer number (33374250).

Almost surely, 2^133154311 is an apocalyptic number.

133154311 is a deficient number, since it is larger than the sum of its proper divisors (342689).

133154311 is an equidigital number, since it uses as much as digits as its factorization.

133154311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342688.

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

The square root of 133154311 is about 11539.2508855645. The cubic root of 133154311 is about 510.6442083505.

The spelling of 133154311 in words is "one hundred thirty-three million, one hundred fifty-four thousand, three hundred eleven".