75144413 has 2 divisors, whose sum is σ = 75144414. Its totient is φ = 75144412.

The previous prime is 75144401. The next prime is 75144451. The reversal of 75144413 is 31444157.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69588964 + 5555449 = 8342^2 + 2357^2 .

It is an emirp because it is prime and its reverse (31444157) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75144413 - 2⁴ = 75144397 is a prime.

It is a super-2 number, since 2×75144413² = 11293365610229138, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75143413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37572206 + 37572207.

It is an arithmetic number, because the mean of its divisors is an integer number (37572207).

Almost surely, 2^75144413 is an apocalyptic number.

It is an amenable number.

75144413 is a deficient number, since it is larger than the sum of its proper divisors (1).

75144413 is an equidigital number, since it uses as much as digits as its factorization.

75144413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 29.

The square root of 75144413 is about 8668.5877165776. The cubic root of 75144413 is about 421.9868316459.

It can be divided in two parts, 75144 and 413, that added together give a palindrome (75557).

The spelling of 75144413 in words is "seventy-five million, one hundred forty-four thousand, four hundred thirteen".