1020418519 has 2 divisors, whose sum is σ = 1020418520. Its totient is φ = 1020418518.

The previous prime is 1020418507. The next prime is 1020418549. The reversal of 1020418519 is 9158140201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020418519 - 2¹⁷ = 1020287447 is a prime.

It is a super-2 number, since 2×1020418519² = 2082507907836306722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020418549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510209259 + 510209260.

It is an arithmetic number, because the mean of its divisors is an integer number (510209260).

Almost surely, 2^1020418519 is an apocalyptic number.

1020418519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020418519 is an equidigital number, since it uses as much as digits as its factorization.

1020418519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 1020418519 is about 31943.9903424729. The cubic root of 1020418519 is about 1006.7603674433.

The spelling of 1020418519 in words is "one billion, twenty million, four hundred eighteen thousand, five hundred nineteen".