2145061319 has 2 divisors, whose sum is σ = 2145061320. Its totient is φ = 2145061318.

The previous prime is 2145061291. The next prime is 2145061367. The reversal of 2145061319 is 9131605412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145061319 is a prime.

It is a super-2 number, since 2×2145061319² = 9202576124540039522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145061019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072530659 + 1072530660.

It is an arithmetic number, because the mean of its divisors is an integer number (1072530660).

Almost surely, 2^2145061319 is an apocalyptic number.

2145061319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145061319 is an equidigital number, since it uses as much as digits as its factorization.

2145061319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 2145061319 is about 46314.8066928925. The cubic root of 2145061319 is about 1289.6738792624.

The spelling of 2145061319 in words is "two billion, one hundred forty-five million, sixty-one thousand, three hundred nineteen".