1671281297 has 8 divisors (see below), whose sum is σ = 1922856000. Its totient is φ = 1422911664.

The previous prime is 1671281267. The next prime is 1671281303. The reversal of 1671281297 is 7921821761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1671281297 - 2¹⁴ = 1671264913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1671281267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800147 + ... + 802232.

It is an arithmetic number, because the mean of its divisors is an integer number (240357000).

Almost surely, 2^1671281297 is an apocalyptic number.

It is an amenable number.

1671281297 is a deficient number, since it is larger than the sum of its proper divisors (251574703).

1671281297 is a wasteful number, since it uses less digits than its factorization.

1671281297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602535.

The product of its digits is 84672, while the sum is 44.

The square root of 1671281297 is about 40881.3074277230. The cubic root of 1671281297 is about 1186.7243429846.

The spelling of 1671281297 in words is "one billion, six hundred seventy-one million, two hundred eighty-one thousand, two hundred ninety-seven".