1002161156 has 12 divisors (see below), whose sum is σ = 1846086480. Its totient is φ = 474707880.

The previous prime is 1002161123. The next prime is 1002161159. The reversal of 1002161156 is 6511612001.

1002161156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1002161159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6593090 + ... + 6593241.

It is an arithmetic number, because the mean of its divisors is an integer number (153840540).

Almost surely, 2^1002161156 is an apocalyptic number.

It is an amenable number.

1002161156 is a deficient number, since it is larger than the sum of its proper divisors (843925324).

1002161156 is a wasteful number, since it uses less digits than its factorization.

1002161156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13186354 (or 13186352 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1002161156 is about 31656.9290361526. The cubic root of 1002161156 is about 1000.7198670005.

Adding to 1002161156 its reverse (6511612001), we get a palindrome (7513773157).

The spelling of 1002161156 in words is "one billion, two million, one hundred sixty-one thousand, one hundred fifty-six".