1612821319 has 2 divisors, whose sum is σ = 1612821320. Its totient is φ = 1612821318.

The previous prime is 1612821293. The next prime is 1612821337. The reversal of 1612821319 is 9131282161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1612821319 - 2¹³ = 1612813127 is a prime.

It is a super-2 number, since 2×1612821319² = 5202385214041799522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1612821359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806410659 + 806410660.

It is an arithmetic number, because the mean of its divisors is an integer number (806410660).

Almost surely, 2^1612821319 is an apocalyptic number.

1612821319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612821319 is an equidigital number, since it uses as much as digits as its factorization.

1612821319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 34.

The square root of 1612821319 is about 40159.9467006618. The cubic root of 1612821319 is about 1172.7229343190.

The spelling of 1612821319 in words is "one billion, six hundred twelve million, eight hundred twenty-one thousand, three hundred nineteen".