1005145213442 has 8 divisors (see below), whose sum is σ = 1596407103756. Its totient is φ = 473009512192.

The previous prime is 1005145213439. The next prime is 1005145213453. The reversal of 1005145213442 is 2443125415001.

It can be written as a sum of positive squares in 2 ways, for example, as 995542977361 + 9602236081 = 997769^2 + 97991^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1005145213399 and 1005145213408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14781547223 + ... + 14781547290.

Almost surely, 2^{1005145213442} is an apocalyptic number.

1005145213442 is a deficient number, since it is larger than the sum of its proper divisors (591261890314).

1005145213442 is a wasteful number, since it uses less digits than its factorization.

1005145213442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29563094532.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 1005145213442 in words is "one trillion, five billion, one hundred forty-five million, two hundred thirteen thousand, four hundred forty-two".