133426477 has 8 divisors (see below), whose sum is σ = 141759000. Its totient is φ = 125342784.

The previous prime is 133426471. The next prime is 133426481. The reversal of 133426477 is 774624331.

It can be written as a sum of positive squares in 4 ways, for example, as 82246761 + 51179716 = 9069^2 + 7154^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 133426477 - 2¹⁵ = 133393709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133426471) 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 7 ways as a sum of consecutive naturals, for example, 61102 + ... + 63247.

It is an arithmetic number, because the mean of its divisors is an integer number (17719875).

Almost surely, 2^133426477 is an apocalyptic number.

It is an amenable number.

133426477 is a deficient number, since it is larger than the sum of its proper divisors (8332523).

133426477 is a wasteful number, since it uses less digits than its factorization.

133426477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124415.

The product of its digits is 84672, while the sum is 37.

The square root of 133426477 is about 11551.0379187327. The cubic root of 133426477 is about 510.9918886891.

It can be divided in two parts, 133426 and 477, that added together give a triangular number (133903 = T₅₁₇).

The spelling of 133426477 in words is "one hundred thirty-three million, four hundred twenty-six thousand, four hundred seventy-seven".