43145093 has 2 divisors, whose sum is σ = 43145094. Its totient is φ = 43145092.

The previous prime is 43145057. The next prime is 43145101. The reversal of 43145093 is 39054134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22877089 + 20268004 = 4783^2 + 4502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43145093 is a prime.

It is a super-2 number, since 2×43145093² = 3722998099957298, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_2612774 and since 43145093 and 2612774 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43145023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21572546 + 21572547.

It is an arithmetic number, because the mean of its divisors is an integer number (21572547).

Almost surely, 2^43145093 is an apocalyptic number.

It is an amenable number.

43145093 is a deficient number, since it is larger than the sum of its proper divisors (1).

43145093 is an equidigital number, since it uses as much as digits as its factorization.

43145093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 43145093 is about 6568.4924449983. The cubic root of 43145093 is about 350.7334090401.

The spelling of 43145093 in words is "forty-three million, one hundred forty-five thousand, ninety-three".