133072403 has 2 divisors, whose sum is σ = 133072404. Its totient is φ = 133072402.

The previous prime is 133072399. The next prime is 133072421. The reversal of 133072403 is 304270331.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (304270331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133072403 - 2² = 133072399 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133072483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66536201 + 66536202.

It is an arithmetic number, because the mean of its divisors is an integer number (66536202).

Almost surely, 2^133072403 is an apocalyptic number.

133072403 is a deficient number, since it is larger than the sum of its proper divisors (1).

133072403 is an equidigital number, since it uses as much as digits as its factorization.

133072403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 133072403 is about 11535.7012357290. The cubic root of 133072403 is about 510.5394816751.

The spelling of 133072403 in words is "one hundred thirty-three million, seventy-two thousand, four hundred three".