75125387 has 2 divisors, whose sum is σ = 75125388. Its totient is φ = 75125386.

The previous prime is 75125381. The next prime is 75125389. The reversal of 75125387 is 78352157.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75125387 - 2⁴ = 75125371 is a prime.

It is a super-3 number, since 3×75125387³ (a number of 25 digits) contains 333 as substring.

Together with 75125389, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75125387.

It is not a weakly prime, because it can be changed into another prime (75125381) 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, 37562693 + 37562694.

It is an arithmetic number, because the mean of its divisors is an integer number (37562694).

Almost surely, 2^75125387 is an apocalyptic number.

75125387 is a deficient number, since it is larger than the sum of its proper divisors (1).

75125387 is an equidigital number, since it uses as much as digits as its factorization.

75125387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 38.

The square root of 75125387 is about 8667.4902365102. The cubic root of 75125387 is about 421.9512140094.

The spelling of 75125387 in words is "seventy-five million, one hundred twenty-five thousand, three hundred eighty-seven".