1005402134 has 32 divisors (see below), whose sum is σ = 1768023936. Its totient is φ = 423688320.

The previous prime is 1005402127. The next prime is 1005402149. The reversal of 1005402134 is 4312045001.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4997 + ... + 45119.

It is an arithmetic number, because the mean of its divisors is an integer number (55250748).

Almost surely, 2^1005402134 is an apocalyptic number.

1005402134 is a deficient number, since it is larger than the sum of its proper divisors (762621802).

1005402134 is a wasteful number, since it uses less digits than its factorization.

1005402134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40220.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1005402134 is about 31708.0767944068. The cubic root of 1005402134 is about 1001.7974784686.

Adding to 1005402134 its reverse (4312045001), we get a palindrome (5317447135).

The spelling of 1005402134 in words is "one billion, five million, four hundred two thousand, one hundred thirty-four".