160901509 has 4 divisors (see below), whose sum is σ = 160984000. Its totient is φ = 160819020.

The previous prime is 160901467. The next prime is 160901527. The reversal of 160901509 is 905109061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160901509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160901809) 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 3 ways as a sum of consecutive naturals, for example, 38247 + ... + 42244.

It is an arithmetic number, because the mean of its divisors is an integer number (40246000).

Almost surely, 2^160901509 is an apocalyptic number.

It is an amenable number.

160901509 is a deficient number, since it is larger than the sum of its proper divisors (82491).

160901509 is an equidigital number, since it uses as much as digits as its factorization.

160901509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82490.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 160901509 is about 12684.6958576073. The cubic root of 160901509 is about 543.9012276069.

The spelling of 160901509 in words is "one hundred sixty million, nine hundred one thousand, five hundred nine".