133426455 has 32 divisors (see below), whose sum is σ = 237945600. Its totient is φ = 63447552.

The previous prime is 133426453. The next prime is 133426471. The reversal of 133426455 is 554624331.

It is not a de Polignac number, because 133426455 - 2¹ = 133426453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133426451) 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 31 ways as a sum of consecutive naturals, for example, 8925 + ... + 18614.

It is an arithmetic number, because the mean of its divisors is an integer number (7435800).

Almost surely, 2^133426455 is an apocalyptic number.

133426455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133426455 is a deficient number, since it is larger than the sum of its proper divisors (104519145).

133426455 is a wasteful number, since it uses less digits than its factorization.

133426455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27583.

The product of its digits is 43200, while the sum is 33.

The square root of 133426455 is about 11551.0369664373. The cubic root of 133426455 is about 510.9918606041.

The spelling of 133426455 in words is "one hundred thirty-three million, four hundred twenty-six thousand, four hundred fifty-five".