160032391 has 4 divisors (see below), whose sum is σ = 160059400. Its totient is φ = 160005384.

The previous prime is 160032377. The next prime is 160032401. The reversal of 160032391 is 193230061.

160032391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 160032391 - 2⁷ = 160032263 is a prime.

It is a super-2 number, since 2×160032391² = 51220732338353762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160032311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336 + ... + 17893.

It is an arithmetic number, because the mean of its divisors is an integer number (40014850).

Almost surely, 2^160032391 is an apocalyptic number.

160032391 is a deficient number, since it is larger than the sum of its proper divisors (27009).

160032391 is an equidigital number, since it uses as much as digits as its factorization.

160032391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27008.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 160032391 is about 12650.3909425756. The cubic root of 160032391 is about 542.9201553059.

The spelling of 160032391 in words is "one hundred sixty million, thirty-two thousand, three hundred ninety-one".