160428591 has 24 divisors (see below), whose sum is σ = 235863264. Its totient is φ = 105062400.

The previous prime is 160428589. The next prime is 160428601. The reversal of 160428591 is 195824061.

160428591 is a `hidden beast` number, since 1 + 60 + 4 + 2 + 8 + 591 = 666.

It is not a de Polignac number, because 160428591 - 2¹ = 160428589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160428581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131215 + ... + 132431.

It is an arithmetic number, because the mean of its divisors is an integer number (9827636).

Almost surely, 2^160428591 is an apocalyptic number.

160428591 is a deficient number, since it is larger than the sum of its proper divisors (75434673).

160428591 is a wasteful number, since it uses less digits than its factorization.

160428591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 160428591 is about 12666.0408573477. The cubic root of 160428591 is about 543.3678307060.

The spelling of 160428591 in words is "one hundred sixty million, four hundred twenty-eight thousand, five hundred ninety-one".