133477951 has 2 divisors, whose sum is σ = 133477952. Its totient is φ = 133477950.

The previous prime is 133477937. The next prime is 133477963. The reversal of 133477951 is 159774331.

It is a strong prime.

It is an emirp because it is prime and its reverse (159774331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133477951 - 2¹⁹ = 132953663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133477991) 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 as a sum of consecutive naturals, namely, 66738975 + 66738976.

It is an arithmetic number, because the mean of its divisors is an integer number (66738976).

Almost surely, 2^133477951 is an apocalyptic number.

133477951 is a deficient number, since it is larger than the sum of its proper divisors (1).

133477951 is an equidigital number, since it uses as much as digits as its factorization.

133477951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 133477951 is about 11553.2658153442. The cubic root of 133477951 is about 511.0575913277.

The spelling of 133477951 in words is "one hundred thirty-three million, four hundred seventy-seven thousand, nine hundred fifty-one".