75145201 has 2 divisors, whose sum is σ = 75145202. Its totient is φ = 75145200.

The previous prime is 75145183. The next prime is 75145223. The reversal of 75145201 is 10254157.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40335201 + 34810000 = 6351^2 + 5900^2 .

It is a cyclic number.

It is not a de Polignac number, because 75145201 - 2⁷ = 75145073 is a prime.

It is not a weakly prime, because it can be changed into another prime (75145241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37572600 + 37572601.

It is an arithmetic number, because the mean of its divisors is an integer number (37572601).

Almost surely, 2^75145201 is an apocalyptic number.

It is an amenable number.

75145201 is a deficient number, since it is larger than the sum of its proper divisors (1).

75145201 is an equidigital number, since it uses as much as digits as its factorization.

75145201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 75145201 is about 8668.6331679221. The cubic root of 75145201 is about 421.9883066922.

Adding to 75145201 its reverse (10254157), we get a palindrome (85399358).

The spelling of 75145201 in words is "seventy-five million, one hundred forty-five thousand, two hundred one".