161210002 has 4 divisors (see below), whose sum is σ = 241815006. Its totient is φ = 80605000.

The previous prime is 161209969. The next prime is 161210011. The reversal of 161210002 is 200012161.

161210002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 106316721 + 54893281 = 10311^2 + 7409^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40302499 + ... + 40302502.

Almost surely, 2^161210002 is an apocalyptic number.

161210002 is a deficient number, since it is larger than the sum of its proper divisors (80605004).

161210002 is an equidigital number, since it uses as much as digits as its factorization.

161210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80605003.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 161210002 is about 12696.8500818116. The cubic root of 161210002 is about 544.2486090647.

Adding to 161210002 its reverse (200012161), we get a palindrome (361222163).

The spelling of 161210002 in words is "one hundred sixty-one million, two hundred ten thousand, two".