75034009 has 2 divisors, whose sum is σ = 75034010. Its totient is φ = 75034008.

The previous prime is 75033997. The next prime is 75034051. The reversal of 75034009 is 90043057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45091225 + 29942784 = 6715^2 + 5472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75034009 is a prime.

It is a super-2 number, since 2×75034009² = 11260205013224162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75034709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37517004 + 37517005.

It is an arithmetic number, because the mean of its divisors is an integer number (37517005).

Almost surely, 2^75034009 is an apocalyptic number.

It is an amenable number.

75034009 is a deficient number, since it is larger than the sum of its proper divisors (1).

75034009 is an equidigital number, since it uses as much as digits as its factorization.

75034009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 75034009 is about 8662.2173258352. The cubic root of 75034009 is about 421.7800659107.

The spelling of 75034009 in words is "seventy-five million, thirty-four thousand, nine".