1671158371 has 2 divisors, whose sum is σ = 1671158372. Its totient is φ = 1671158370.

The previous prime is 1671158353. The next prime is 1671158387. The reversal of 1671158371 is 1738511761.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1671158371 - 2²³ = 1662769763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1671158341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835579185 + 835579186.

It is an arithmetic number, because the mean of its divisors is an integer number (835579186).

Almost surely, 2^1671158371 is an apocalyptic number.

1671158371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671158371 is an equidigital number, since it uses as much as digits as its factorization.

1671158371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 40.

The square root of 1671158371 is about 40879.8039501170. The cubic root of 1671158371 is about 1186.6952469743.

The spelling of 1671158371 in words is "one billion, six hundred seventy-one million, one hundred fifty-eight thousand, three hundred seventy-one".