992005145 has 8 divisors (see below), whose sum is σ = 1190858760. Its totient is φ = 793302400.

The previous prime is 992005093. The next prime is 992005153. The reversal of 992005145 is 541500299.

It can be written as a sum of positive squares in 4 ways, for example, as 341806144 + 650199001 = 18488^2 + 25499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 992005145 - 2¹⁰ = 992004121 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22706 + ... + 49995.

It is an arithmetic number, because the mean of its divisors is an integer number (148857345).

Almost surely, 2^992005145 is an apocalyptic number.

It is an amenable number.

992005145 is a deficient number, since it is larger than the sum of its proper divisors (198853615).

992005145 is a wasteful number, since it uses less digits than its factorization.

992005145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75435.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 992005145 is about 31496.1131728980. The cubic root of 992005145 is about 997.3279146528.

The spelling of 992005145 in words is "nine hundred ninety-two million, five thousand, one hundred forty-five".