1230628519 has 2 divisors, whose sum is σ = 1230628520. Its totient is φ = 1230628518.

The previous prime is 1230628493. The next prime is 1230628561. The reversal of 1230628519 is 9158260321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230628519 - 2⁷ = 1230628391 is a prime.

It is a super-2 number, since 2×1230628519² = 3028893103552266722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230628219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615314259 + 615314260.

It is an arithmetic number, because the mean of its divisors is an integer number (615314260).

Almost surely, 2^1230628519 is an apocalyptic number.

1230628519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230628519 is an equidigital number, since it uses as much as digits as its factorization.

1230628519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1230628519 is about 35080.3152636917. The cubic root of 1230628519 is about 1071.6237375834.

The spelling of 1230628519 in words is "one billion, two hundred thirty million, six hundred twenty-eight thousand, five hundred nineteen".