160031399 has 4 divisors (see below), whose sum is σ = 174579720. Its totient is φ = 145483080.

The previous prime is 160031371. The next prime is 160031411. The reversal of 160031399 is 993130061.

160031399 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 160031399 - 2¹² = 160027303 is a prime.

It is a super-2 number, since 2×160031399² = 51220097331794402, 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 (160031329) 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, 7274144 + ... + 7274165.

It is an arithmetic number, because the mean of its divisors is an integer number (43644930).

Almost surely, 2^160031399 is an apocalyptic number.

160031399 is a deficient number, since it is larger than the sum of its proper divisors (14548321).

160031399 is a wasteful number, since it uses less digits than its factorization.

160031399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14548320.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 160031399 is about 12650.3517342404. The cubic root of 160031399 is about 542.9190334957.

The spelling of 160031399 in words is "one hundred sixty million, thirty-one thousand, three hundred ninety-nine".