133962971 has 4 divisors (see below), whose sum is σ = 139787472. Its totient is φ = 128138472.

The previous prime is 133962953. The next prime is 133962991. The reversal of 133962971 is 179269331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179269331 = 3923 ⋅45697.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133962971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133962911) 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, 2912216 + ... + 2912261.

It is an arithmetic number, because the mean of its divisors is an integer number (34946868).

Almost surely, 2^133962971 is an apocalyptic number.

133962971 is a deficient number, since it is larger than the sum of its proper divisors (5824501).

133962971 is an equidigital number, since it uses as much as digits as its factorization.

133962971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824500.

The product of its digits is 61236, while the sum is 41.

The square root of 133962971 is about 11574.2373830849. The cubic root of 133962971 is about 511.6758545508.

The spelling of 133962971 in words is "one hundred thirty-three million, nine hundred sixty-two thousand, nine hundred seventy-one".