160781401 has 8 divisors (see below), whose sum is σ = 184629600. Its totient is φ = 138471840.

The previous prime is 160781371. The next prime is 160781443. The reversal of 160781401 is 104187061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 160781401 - 2⁷ = 160781273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 160781401.

It is not an unprimeable number, because it can be changed into a prime (160781471) 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, 384436 + ... + 384853.

It is an arithmetic number, because the mean of its divisors is an integer number (23078700).

Almost surely, 2^160781401 is an apocalyptic number.

160781401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

160781401 is a deficient number, since it is larger than the sum of its proper divisors (23848199).

160781401 is a wasteful number, since it uses less digits than its factorization.

160781401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769319.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 160781401 is about 12679.9606071943. The cubic root of 160781401 is about 543.7658587703.

The spelling of 160781401 in words is "one hundred sixty million, seven hundred eighty-one thousand, four hundred one".