1002660129 has 6 divisors (see below), whose sum is σ = 1448286866. Its totient is φ = 668440080.

The previous prime is 1002660097. The next prime is 1002660149. The reversal of 1002660129 is 9210662001.

1002660129 is a `hidden beast` number, since 10 + 0 + 26 + 601 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 990549729 + 12110400 = 31473^2 + 3480^2 .

It is not a de Polignac number, because 1002660129 - 2⁵ = 1002660097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002660149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55703332 + ... + 55703349.

Almost surely, 2^1002660129 is an apocalyptic number.

It is an amenable number.

1002660129 is a deficient number, since it is larger than the sum of its proper divisors (445626737).

1002660129 is a wasteful number, since it uses less digits than its factorization.

1002660129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111406687 (or 111406684 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1002660129 is about 31664.8089998977. The cubic root of 1002660129 is about 1000.8859245725.

The spelling of 1002660129 in words is "one billion, two million, six hundred sixty thousand, one hundred twenty-nine".