75212150129 has 2 divisors, whose sum is σ = 75212150130. Its totient is φ = 75212150128.

The previous prime is 75212150077. The next prime is 75212150131. The reversal of 75212150129 is 92105121257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55535635600 + 19676514529 = 235660^2 + 140273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75212150129 is a prime.

It is a Sophie Germain prime.

Together with 75212150131, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (75212153129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37606075064 + 37606075065.

It is an arithmetic number, because the mean of its divisors is an integer number (37606075065).

Almost surely, 2^75212150129 is an apocalyptic number.

It is an amenable number.

75212150129 is a deficient number, since it is larger than the sum of its proper divisors (1).

75212150129 is an equidigital number, since it uses as much as digits as its factorization.

75212150129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 75212150129 in words is "seventy-five billion, two hundred twelve million, one hundred fifty thousand, one hundred twenty-nine".