1862130449 has 2 divisors, whose sum is σ = 1862130450. Its totient is φ = 1862130448.

The previous prime is 1862130427. The next prime is 1862130451. The reversal of 1862130449 is 9440312681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006158400 + 855972049 = 31720^2 + 29257^2 .

It is a cyclic number.

It is not a de Polignac number, because 1862130449 - 2¹² = 1862126353 is a prime.

Together with 1862130451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1862130749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 931065224 + 931065225.

It is an arithmetic number, because the mean of its divisors is an integer number (931065225).

Almost surely, 2^1862130449 is an apocalyptic number.

It is an amenable number.

1862130449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1862130449 is an equidigital number, since it uses as much as digits as its factorization.

1862130449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1862130449 is about 43152.4095387500. The cubic root of 1862130449 is about 1230.2783094642.

The spelling of 1862130449 in words is "one billion, eight hundred sixty-two million, one hundred thirty thousand, four hundred forty-nine".