1002136620 has 48 divisors (see below), whose sum is σ = 2808546048. Its totient is φ = 266992320.

The previous prime is 1002136613. The next prime is 1002136631. The reversal of 1002136620 is 266312001.

It is a happy 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, 64185 + ... + 78255.

It is an arithmetic number, because the mean of its divisors is an integer number (58511376).

Almost surely, 2^1002136620 is an apocalyptic number.

1002136620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002136620 is an abundant number, since it is smaller than the sum of its proper divisors (1806409428).

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

1002136620 is a wasteful number, since it uses less digits than its factorization.

1002136620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15270 (or 15268 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1002136620 is about 31656.5415040873. The cubic root of 1002136620 is about 1000.7117000296.

Adding to 1002136620 its reverse (266312001), we get a palindrome (1268448621).

The spelling of 1002136620 in words is "one billion, two million, one hundred thirty-six thousand, six hundred twenty".