133874771 has 4 divisors (see below), whose sum is σ = 138193344. Its totient is φ = 129556200.

The previous prime is 133874761. The next prime is 133874801. The reversal of 133874771 is 177478331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177478331 = 881 ⋅201451.

It is a cyclic number.

It is not a de Polignac number, because 133874771 - 2⁶ = 133874707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133874731) 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, 2159240 + ... + 2159301.

It is an arithmetic number, because the mean of its divisors is an integer number (34548336).

Almost surely, 2^133874771 is an apocalyptic number.

133874771 is a deficient number, since it is larger than the sum of its proper divisors (4318573).

133874771 is an equidigital number, since it uses as much as digits as its factorization.

133874771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4318572.

The product of its digits is 98784, while the sum is 41.

The square root of 133874771 is about 11570.4265694917. The cubic root of 133874771 is about 511.5635356565.

The spelling of 133874771 in words is "one hundred thirty-three million, eight hundred seventy-four thousand, seven hundred seventy-one".