375091649 has 2 divisors, whose sum is σ = 375091650. Its totient is φ = 375091648.

The previous prime is 375091643. The next prime is 375091663. The reversal of 375091649 is 946190573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326886400 + 48205249 = 18080^2 + 6943^2 .

It is a cyclic number.

It is not a de Polignac number, because 375091649 - 2¹² = 375087553 is a prime.

It is not a weakly prime, because it can be changed into another prime (375091643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187545824 + 187545825.

It is an arithmetic number, because the mean of its divisors is an integer number (187545825).

Almost surely, 2^375091649 is an apocalyptic number.

It is an amenable number.

375091649 is a deficient number, since it is larger than the sum of its proper divisors (1).

375091649 is an equidigital number, since it uses as much as digits as its factorization.

375091649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 375091649 is about 19367.2829534759. The cubic root of 375091649 is about 721.1835273600.

The spelling of 375091649 in words is "three hundred seventy-five million, ninety-one thousand, six hundred forty-nine".