75379481 has 2 divisors, whose sum is σ = 75379482. Its totient is φ = 75379480.

The previous prime is 75379457. The next prime is 75379483. The reversal of 75379481 is 18497357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53523856 + 21855625 = 7316^2 + 4675^2 .

It is a cyclic number.

It is not a de Polignac number, because 75379481 - 2¹⁴ = 75363097 is a prime.

It is a super-2 number, since 2×75379481² = 11364132311658722, which contains 22 as substring.

Together with 75379483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75379483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37689740 + 37689741.

It is an arithmetic number, because the mean of its divisors is an integer number (37689741).

Almost surely, 2^75379481 is an apocalyptic number.

It is an amenable number.

75379481 is a deficient number, since it is larger than the sum of its proper divisors (1).

75379481 is an equidigital number, since it uses as much as digits as its factorization.

75379481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 75379481 is about 8682.1357395516. The cubic root of 75379481 is about 422.4263956838.

The spelling of 75379481 in words is "seventy-five million, three hundred seventy-nine thousand, four hundred eighty-one".