1005129702 has 16 divisors (see below), whose sum is σ = 2233621680. Its totient is φ = 335043216.

The previous prime is 1005129667. The next prime is 1005129703. The reversal of 1005129702 is 2079215001.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005129703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9306703 + ... + 9306810.

It is an arithmetic number, because the mean of its divisors is an integer number (139601355).

Almost surely, 2^1005129702 is an apocalyptic number.

1005129702 is an abundant number, since it is smaller than the sum of its proper divisors (1228491978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1005129702 is a wasteful number, since it uses less digits than its factorization.

1005129702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18613524 (or 18613518 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1005129702 is about 31703.7805632073. The cubic root of 1005129702 is about 1001.7069852102.

The spelling of 1005129702 in words is "one billion, five million, one hundred twenty-nine thousand, seven hundred two".