161862052 has 12 divisors (see below), whose sum is σ = 309009456. Its totient is φ = 73573640.

The previous prime is 161861993. The next prime is 161862091. The reversal of 161862052 is 250268161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1839298 + ... + 1839385.

It is an arithmetic number, because the mean of its divisors is an integer number (25750788).

Almost surely, 2^161862052 is an apocalyptic number.

It is an amenable number.

161862052 is a deficient number, since it is larger than the sum of its proper divisors (147147404).

161862052 is a wasteful number, since it uses less digits than its factorization.

161862052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678698 (or 3678696 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 161862052 is about 12722.5017979955. The cubic root of 161862052 is about 544.9814004819.

The spelling of 161862052 in words is "one hundred sixty-one million, eight hundred sixty-two thousand, fifty-two".