161026346 has 16 divisors (see below), whose sum is σ = 275421384. Its totient is φ = 69947904.

The previous prime is 161026343. The next prime is 161026361. The reversal of 161026346 is 643620161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 126675025 + 34351321 = 11255^2 + 5861^2 .

It is a super-2 number, since 2×161026346² = 51858968212223432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161026343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181715 + ... + 182598.

Almost surely, 2^161026346 is an apocalyptic number.

161026346 is a deficient number, since it is larger than the sum of its proper divisors (114395038).

161026346 is a wasteful number, since it uses less digits than its factorization.

161026346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364345.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 161026346 is about 12689.6156758193. The cubic root of 161026346 is about 544.0418549291.

The spelling of 161026346 in words is "one hundred sixty-one million, twenty-six thousand, three hundred forty-six".