1671454231 has 2 divisors, whose sum is σ = 1671454232. Its totient is φ = 1671454230.

The previous prime is 1671454223. The next prime is 1671454259. The reversal of 1671454231 is 1324541761.

It is a weak prime.

It is an emirp because it is prime and its reverse (1324541761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1671454231 - 2³ = 1671454223 is a prime.

It is a super-2 number, since 2×1671454231² = 5587518492655602722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1671454201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835727115 + 835727116.

It is an arithmetic number, because the mean of its divisors is an integer number (835727116).

Almost surely, 2^1671454231 is an apocalyptic number.

1671454231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671454231 is an equidigital number, since it uses as much as digits as its factorization.

1671454231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 1671454231 is about 40883.4224472463. The cubic root of 1671454231 is about 1186.7652732397.

Adding to 1671454231 its reverse (1324541761), we get a palindrome (2995995992).

The spelling of 1671454231 in words is "one billion, six hundred seventy-one million, four hundred fifty-four thousand, two hundred thirty-one".