75412069 has 2 divisors, whose sum is σ = 75412070. Its totient is φ = 75412068.

The previous prime is 75412037. The next prime is 75412091. The reversal of 75412069 is 96021457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 3755844 = 8465^2 + 1938^2 .

It is a cyclic number.

It is not a de Polignac number, because 75412069 - 2⁵ = 75412037 is a prime.

It is a super-2 number, since 2×75412069² = 11373960301721522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75413069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37706034 + 37706035.

It is an arithmetic number, because the mean of its divisors is an integer number (37706035).

Almost surely, 2^75412069 is an apocalyptic number.

It is an amenable number.

75412069 is a deficient number, since it is larger than the sum of its proper divisors (1).

75412069 is an equidigital number, since it uses as much as digits as its factorization.

75412069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 75412069 is about 8684.0122639250. The cubic root of 75412069 is about 422.4872612664.

The spelling of 75412069 in words is "seventy-five million, four hundred twelve thousand, sixty-nine".