161751002 has 16 divisors (see below), whose sum is σ = 277576512. Its totient is φ = 69249600.

The previous prime is 161750989. The next prime is 161751011. The reversal of 161751002 is 200157161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9218 + ... + 20210.

It is an arithmetic number, because the mean of its divisors is an integer number (17348532).

Almost surely, 2^161751002 is an apocalyptic number.

161751002 is a deficient number, since it is larger than the sum of its proper divisors (115825510).

161751002 is a wasteful number, since it uses less digits than its factorization.

161751002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12053.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 161751002 is about 12718.1367346007. The cubic root of 161751002 is about 544.8567387106.

The spelling of 161751002 in words is "one hundred sixty-one million, seven hundred fifty-one thousand, two".