133420071 has 8 divisors (see below), whose sum is σ = 187256320. Its totient is φ = 84265272.

The previous prime is 133420069. The next prime is 133420073. The reversal of 133420071 is 170024331.

It is an interprime number because it is at equal distance from previous prime (133420069) and next prime (133420073).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133420071 - 2¹ = 133420069 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 (133420073) 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 7 ways as a sum of consecutive naturals, for example, 1170295 + ... + 1170408.

It is an arithmetic number, because the mean of its divisors is an integer number (23407040).

Almost surely, 2^133420071 is an apocalyptic number.

133420071 is a deficient number, since it is larger than the sum of its proper divisors (53836249).

133420071 is a wasteful number, since it uses less digits than its factorization.

133420071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340725.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 133420071 is about 11550.7606243052. The cubic root of 133420071 is about 510.9837107359.

The spelling of 133420071 in words is "one hundred thirty-three million, four hundred twenty thousand, seventy-one".