161226010 has 16 divisors (see below), whose sum is σ = 316589472. Its totient is φ = 58627600.

The previous prime is 161225959. The next prime is 161226017. The reversal of 161226010 is 10622161.

It is not an unprimeable number, because it can be changed into a prime (161226017) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 732736 + ... + 732955.

It is an arithmetic number, because the mean of its divisors is an integer number (19786842).

Almost surely, 2^161226010 is an apocalyptic number.

161226010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161226010 is a deficient number, since it is larger than the sum of its proper divisors (155363462).

161226010 is a wasteful number, since it uses less digits than its factorization.

161226010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465709.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 161226010 is about 12697.4804587367. The cubic root of 161226010 is about 544.2666229250.

Adding to 161226010 its reverse (10622161), we get a palindrome (171848171).

The spelling of 161226010 in words is "one hundred sixty-one million, two hundred twenty-six thousand, ten".