133420951 has 2 divisors, whose sum is σ = 133420952. Its totient is φ = 133420950.

The previous prime is 133420933. The next prime is 133420979. The reversal of 133420951 is 159024331.

It is an a-pointer prime, because the next prime (133420979) can be obtained adding 133420951 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (159024331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133420951 - 2⁹ = 133420439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133420151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66710475 + 66710476.

It is an arithmetic number, because the mean of its divisors is an integer number (66710476).

Almost surely, 2^133420951 is an apocalyptic number.

133420951 is a deficient number, since it is larger than the sum of its proper divisors (1).

133420951 is an equidigital number, since it uses as much as digits as its factorization.

133420951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 133420951 is about 11550.7987169719. The cubic root of 133420951 is about 510.9848341668.

The spelling of 133420951 in words is "one hundred thirty-three million, four hundred twenty thousand, nine hundred fifty-one".