1900545419 has 2 divisors, whose sum is σ = 1900545420. Its totient is φ = 1900545418.

The previous prime is 1900545397. The next prime is 1900545523. The reversal of 1900545419 is 9145450091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1900545419 - 2²⁴ = 1883768203 is a prime.

It is a super-2 number, since 2×1900545419² = 7224145779363771122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1900545019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950272709 + 950272710.

It is an arithmetic number, because the mean of its divisors is an integer number (950272710).

Almost surely, 2^1900545419 is an apocalyptic number.

1900545419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1900545419 is an equidigital number, since it uses as much as digits as its factorization.

1900545419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 1900545419 is about 43595.2453714852. The cubic root of 1900545419 is about 1238.6808332788.

The spelling of 1900545419 in words is "one billion, nine hundred million, five hundred forty-five thousand, four hundred nineteen".