133749767 has 2 divisors, whose sum is σ = 133749768. Its totient is φ = 133749766.

The previous prime is 133749757. The next prime is 133749773. The reversal of 133749767 is 767947331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133749767 - 2⁴ = 133749751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133749757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66874883 + 66874884.

It is an arithmetic number, because the mean of its divisors is an integer number (66874884).

Almost surely, 2^133749767 is an apocalyptic number.

133749767 is a deficient number, since it is larger than the sum of its proper divisors (1).

133749767 is an equidigital number, since it uses as much as digits as its factorization.

133749767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 47.

The square root of 133749767 is about 11565.0234327476. The cubic root of 133749767 is about 511.4042639195.

The spelling of 133749767 in words is "one hundred thirty-three million, seven hundred forty-nine thousand, seven hundred sixty-seven".