75384131 has 2 divisors, whose sum is σ = 75384132. Its totient is φ = 75384130.

The previous prime is 75384109. The next prime is 75384143. The reversal of 75384131 is 13148357.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75384131 - 2¹⁸ = 75121987 is a prime.

It is a super-2 number, since 2×75384131² = 11365534413250322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (75384161) 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, 37692065 + 37692066.

It is an arithmetic number, because the mean of its divisors is an integer number (37692066).

Almost surely, 2^75384131 is an apocalyptic number.

75384131 is a deficient number, since it is larger than the sum of its proper divisors (1).

75384131 is an equidigital number, since it uses as much as digits as its factorization.

75384131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 75384131 is about 8682.4035266739. The cubic root of 75384131 is about 422.4350817008.

The spelling of 75384131 in words is "seventy-five million, three hundred eighty-four thousand, one hundred thirty-one".