133451477 has 2 divisors, whose sum is σ = 133451478. Its totient is φ = 133451476.

The previous prime is 133451453. The next prime is 133451501. The reversal of 133451477 is 774154331.

It is a balanced prime because it is at equal distance from previous prime (133451453) and next prime (133451501).

It can be written as a sum of positive squares in only one way, i.e., 76282756 + 57168721 = 8734^2 + 7561^2 .

It is a cyclic number.

It is not a de Polignac number, because 133451477 - 2¹⁸ = 133189333 is a prime.

It is equal to p_7562753 and since 133451477 and 7562753 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133451447) 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, 66725738 + 66725739.

It is an arithmetic number, because the mean of its divisors is an integer number (66725739).

Almost surely, 2^133451477 is an apocalyptic number.

It is an amenable number.

133451477 is a deficient number, since it is larger than the sum of its proper divisors (1).

133451477 is an equidigital number, since it uses as much as digits as its factorization.

133451477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 133451477 is about 11552.1200218834. The cubic root of 133451477 is about 511.0238013942.

The spelling of 133451477 in words is "one hundred thirty-three million, four hundred fifty-one thousand, four hundred seventy-seven".