161436301 has 16 divisors (see below), whose sum is σ = 190436400. Its totient is φ = 135410688.

The previous prime is 161436283. The next prime is 161436307. The reversal of 161436301 is 103634161.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10883401 + 150552900 = 3299^2 + 12270^2 .

It is a cyclic number.

It is not a de Polignac number, because 161436301 - 2⁷ = 161436173 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161436307) 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, 6186 + ... + 19003.

It is an arithmetic number, because the mean of its divisors is an integer number (11902275).

Almost surely, 2^161436301 is an apocalyptic number.

It is an amenable number.

161436301 is a deficient number, since it is larger than the sum of its proper divisors (29000099).

161436301 is a wasteful number, since it uses less digits than its factorization.

161436301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25248.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 161436301 is about 12705.7585763307. The cubic root of 161436301 is about 544.5031535083.

The spelling of 161436301 in words is "one hundred sixty-one million, four hundred thirty-six thousand, three hundred one".