75694231 has 2 divisors, whose sum is σ = 75694232. Its totient is φ = 75694230.

The previous prime is 75694189. The next prime is 75694243. The reversal of 75694231 is 13249657.

It is a strong prime.

It is an emirp because it is prime and its reverse (13249657) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75694231 is a prime.

It is a super-2 number, since 2×75694231² = 11459233213362722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75694291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37847115 + 37847116.

It is an arithmetic number, because the mean of its divisors is an integer number (37847116).

Almost surely, 2^75694231 is an apocalyptic number.

75694231 is a deficient number, since it is larger than the sum of its proper divisors (1).

75694231 is an equidigital number, since it uses as much as digits as its factorization.

75694231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 75694231 is about 8700.2431575215. The cubic root of 75694231 is about 423.0135319366.

The spelling of 75694231 in words is "seventy-five million, six hundred ninety-four thousand, two hundred thirty-one".