1675985291 has 2 divisors, whose sum is σ = 1675985292. Its totient is φ = 1675985290.

The previous prime is 1675985221. The next prime is 1675985299. The reversal of 1675985291 is 1925895761.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1925895761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1675985291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1675985299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837992645 + 837992646.

It is an arithmetic number, because the mean of its divisors is an integer number (837992646).

Almost surely, 2^1675985291 is an apocalyptic number.

1675985291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1675985291 is an equidigital number, since it uses as much as digits as its factorization.

1675985291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 53.

The square root of 1675985291 is about 40938.7993351051. The cubic root of 1675985291 is about 1187.8366861534.

The spelling of 1675985291 in words is "one billion, six hundred seventy-five million, nine hundred eighty-five thousand, two hundred ninety-one".