133454231 has 2 divisors, whose sum is σ = 133454232. Its totient is φ = 133454230.

The previous prime is 133454203. The next prime is 133454261. The reversal of 133454231 is 132454331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133454231 is a prime.

It is a super-2 number, since 2×133454231² = 35620063543602722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133454231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133454261) 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 as a sum of consecutive naturals, namely, 66727115 + 66727116.

It is an arithmetic number, because the mean of its divisors is an integer number (66727116).

Almost surely, 2^133454231 is an apocalyptic number.

133454231 is a deficient number, since it is larger than the sum of its proper divisors (1).

133454231 is an equidigital number, since it uses as much as digits as its factorization.

133454231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 133454231 is about 11552.2392201685. The cubic root of 133454231 is about 511.0273166540.

It can be divided in two parts, 13345 and 4231, that added together give a cube (17576 = 26³).

The spelling of 133454231 in words is "one hundred thirty-three million, four hundred fifty-four thousand, two hundred thirty-one".