75133147 has 2 divisors, whose sum is σ = 75133148. Its totient is φ = 75133146.

The previous prime is 75133127. The next prime is 75133211. The reversal of 75133147 is 74133157.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75133147 - 2¹¹ = 75131099 is a prime.

It is not a weakly prime, because it can be changed into another prime (75133117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37566573 + 37566574.

It is an arithmetic number, because the mean of its divisors is an integer number (37566574).

Almost surely, 2^75133147 is an apocalyptic number.

75133147 is a deficient number, since it is larger than the sum of its proper divisors (1).

75133147 is an equidigital number, since it uses as much as digits as its factorization.

75133147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 31.

The square root of 75133147 is about 8667.9378747197. The cubic root of 75133147 is about 421.9657418489.

The spelling of 75133147 in words is "seventy-five million, one hundred thirty-three thousand, one hundred forty-seven".