133001439 has 12 divisors (see below), whose sum is σ = 183244248. Its totient is φ = 85805520.

The previous prime is 133001419. The next prime is 133001459. The reversal of 133001439 is 934100331.

It is an interprime number because it is at equal distance from previous prime (133001419) and next prime (133001459).

It is not a de Polignac number, because 133001439 - 2¹² = 132997343 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133001419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20184 + ... + 25949.

It is an arithmetic number, because the mean of its divisors is an integer number (15270354).

Almost surely, 2^133001439 is an apocalyptic number.

133001439 is a deficient number, since it is larger than the sum of its proper divisors (50242809).

133001439 is an equidigital number, since it uses as much as digits as its factorization.

133001439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46198 (or 46167 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 133001439 is about 11532.6249830644. The cubic root of 133001439 is about 510.4487131285.

The spelling of 133001439 in words is "one hundred thirty-three million, one thousand, four hundred thirty-nine".