2115161002 has 4 divisors (see below), whose sum is σ = 3172741506. Its totient is φ = 1057580500.

The previous prime is 2115160979. The next prime is 2115161011. The reversal of 2115161002 is 2001615112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1620143001 + 495018001 = 40251^2 + 22249^2 .

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 as a sum of consecutive naturals, namely, 528790249 + ... + 528790252.

Almost surely, 2^2115161002 is an apocalyptic number.

2115161002 is a deficient number, since it is larger than the sum of its proper divisors (1057580504).

2115161002 is a wasteful number, since it uses less digits than its factorization.

2115161002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057580503.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 2115161002 is about 45990.8795523634. The cubic root of 2115161002 is about 1283.6535027257.

Adding to 2115161002 its reverse (2001615112), we get a palindrome (4116776114).

The spelling of 2115161002 in words is "two billion, one hundred fifteen million, one hundred sixty-one thousand, two".