161402802 has 32 divisors (see below), whose sum is σ = 363515904. Its totient is φ = 47331600.

The previous prime is 161402797. The next prime is 161402821. The reversal of 161402802 is 208204161.

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, 37398 + ... + 41489.

It is an arithmetic number, because the mean of its divisors is an integer number (11359872).

Almost surely, 2^161402802 is an apocalyptic number.

161402802 is an abundant number, since it is smaller than the sum of its proper divisors (202113102).

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

161402802 is a wasteful number, since it uses less digits than its factorization.

161402802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78934.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 161402802 is about 12704.4402474096. The cubic root of 161402802 is about 544.4654883470.

Adding to 161402802 its reverse (208204161), we get a palindrome (369606963).

The spelling of 161402802 in words is "one hundred sixty-one million, four hundred two thousand, eight hundred two".