675532381 has 2 divisors, whose sum is σ = 675532382. Its totient is φ = 675532380.

The previous prime is 675532337. The next prime is 675532423. The reversal of 675532381 is 183235576.

675532381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397643481 + 277888900 = 19941^2 + 16670^2 .

It is a cyclic number.

It is not a de Polignac number, because 675532381 - 2⁹ = 675531869 is a prime.

It is a super-2 number, since 2×675532381² = 912687995559058322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675532321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337766190 + 337766191.

It is an arithmetic number, because the mean of its divisors is an integer number (337766191).

Almost surely, 2^675532381 is an apocalyptic number.

It is an amenable number.

675532381 is a deficient number, since it is larger than the sum of its proper divisors (1).

675532381 is an equidigital number, since it uses as much as digits as its factorization.

675532381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 675532381 is about 25991.0057712279. The cubic root of 675532381 is about 877.4358818203.

The spelling of 675532381 in words is "six hundred seventy-five million, five hundred thirty-two thousand, three hundred eighty-one".