375281161 has 2 divisors, whose sum is σ = 375281162. Its totient is φ = 375281160.

The previous prime is 375281149. The next prime is 375281173. The reversal of 375281161 is 161182573.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (375281149) and next prime (375281173).

It can be written as a sum of positive squares in only one way, i.e., 274399225 + 100881936 = 16565^2 + 10044^2 .

It is an emirp because it is prime and its reverse (161182573) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 375281161 - 2⁵ = 375281129 is a prime.

It is not a weakly prime, because it can be changed into another prime (375281111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187640580 + 187640581.

It is an arithmetic number, because the mean of its divisors is an integer number (187640581).

Almost surely, 2^375281161 is an apocalyptic number.

375281161 is the 8664-th centered decagonal number.

It is an amenable number.

375281161 is a deficient number, since it is larger than the sum of its proper divisors (1).

375281161 is an equidigital number, since it uses as much as digits as its factorization.

375281161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 375281161 is about 19372.1749166169. The cubic root of 375281161 is about 721.3049642780.

The spelling of 375281161 in words is "three hundred seventy-five million, two hundred eighty-one thousand, one hundred sixty-one".