75311147 has 2 divisors, whose sum is σ = 75311148. Its totient is φ = 75311146.

The previous prime is 75311113. The next prime is 75311153. The reversal of 75311147 is 74111357.

It is a strong prime.

It is an emirp because it is prime and its reverse (74111357) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75311147 - 2⁶ = 75311083 is a prime.

It is not a weakly prime, because it can be changed into another prime (75311167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37655573 + 37655574.

It is an arithmetic number, because the mean of its divisors is an integer number (37655574).

Almost surely, 2^75311147 is an apocalyptic number.

75311147 is a deficient number, since it is larger than the sum of its proper divisors (1).

75311147 is an equidigital number, since it uses as much as digits as its factorization.

75311147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2940, while the sum is 29.

The square root of 75311147 is about 8678.1995252472. The cubic root of 75311147 is about 422.2987092453.

The spelling of 75311147 in words is "seventy-five million, three hundred eleven thousand, one hundred forty-seven".