990519147 has 12 divisors (see below), whose sum is σ = 1464023704. Its totient is φ = 644988960.

The previous prime is 990519137. The next prime is 990519149. The reversal of 990519147 is 741915099.

990519147 is a `hidden beast` number, since 9 + 90 + 519 + 1 + 47 = 666.

It is not a de Polignac number, because 990519147 - 2²⁰ = 989470571 is a prime.

It is a super-2 number, since 2×990519147² = 1962256361147215218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990519149) 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 in 11 ways as a sum of consecutive naturals, for example, 1279354 + ... + 1280127.

Almost surely, 2^990519147 is an apocalyptic number.

990519147 is a deficient number, since it is larger than the sum of its proper divisors (473504557).

990519147 is a wasteful number, since it uses less digits than its factorization.

990519147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559530 (or 2559527 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 990519147 is about 31472.5141512400. The cubic root of 990519147 is about 996.8296753298.

The spelling of 990519147 in words is "nine hundred ninety million, five hundred nineteen thousand, one hundred forty-seven".