161230310 has 32 divisors (see below), whose sum is σ = 296386560. Its totient is φ = 63135072.

The previous prime is 161230297. The next prime is 161230313. The reversal of 161230310 is 13032161.

It is a super-2 number, since 2×161230310² = 51990425725392200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161230313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99527 + ... + 101133.

It is an arithmetic number, because the mean of its divisors is an integer number (9262080).

Almost surely, 2^161230310 is an apocalyptic number.

161230310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161230310 is a deficient number, since it is larger than the sum of its proper divisors (135156250).

161230310 is a wasteful number, since it uses less digits than its factorization.

161230310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 161230310 is about 12697.6497825385. The cubic root of 161230310 is about 544.2714615274.

Adding to 161230310 its reverse (13032161), we get a palindrome (174262471).

The spelling of 161230310 in words is "one hundred sixty-one million, two hundred thirty thousand, three hundred ten".