1002199161 has 8 divisors (see below), whose sum is σ = 1336950720. Its totient is φ = 667790192.

The previous prime is 1002199157. The next prime is 1002199169. The reversal of 1002199161 is 1619912001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002199161 - 2² = 1002199157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002199169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78741 + ... + 90578.

It is an arithmetic number, because the mean of its divisors is an integer number (167118840).

Almost surely, 2^1002199161 is an apocalyptic number.

It is an amenable number.

1002199161 is a deficient number, since it is larger than the sum of its proper divisors (334751559).

1002199161 is a wasteful number, since it uses less digits than its factorization.

1002199161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171295.

The product of its (nonzero) digits is 972, while the sum is 30.

The square root of 1002199161 is about 31657.5292939926. The cubic root of 1002199161 is about 1000.7325169546.

The spelling of 1002199161 in words is "one billion, two million, one hundred ninety-nine thousand, one hundred sixty-one".