1641031319 has 2 divisors, whose sum is σ = 1641031320. Its totient is φ = 1641031318.

The previous prime is 1641031303. The next prime is 1641031321. The reversal of 1641031319 is 9131301461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1641031319 - 2⁴ = 1641031303 is a prime.

It is a super-2 number, since 2×1641031319² = 5385967579877759522, which contains 22 as substring.

Together with 1641031321, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1641031291 and 1641031300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1641031339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820515659 + 820515660.

It is an arithmetic number, because the mean of its divisors is an integer number (820515660).

Almost surely, 2^1641031319 is an apocalyptic number.

1641031319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641031319 is an equidigital number, since it uses as much as digits as its factorization.

1641031319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1641031319 is about 40509.6447651667. The cubic root of 1641031319 is about 1179.5208528176.

The spelling of 1641031319 in words is "one billion, six hundred forty-one million, thirty-one thousand, three hundred nineteen".