231016159 has 4 divisors (see below), whose sum is σ = 252017640. Its totient is φ = 210014680.

The previous prime is 231016157. The next prime is 231016169. The reversal of 231016159 is 951610132.

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 231016159 - 2¹ = 231016157 is a prime.

It is a super-2 number, since 2×231016159² = 106736931438226562, 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 (231016153) 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, 10500724 + ... + 10500745.

It is an arithmetic number, because the mean of its divisors is an integer number (63004410).

Almost surely, 2^231016159 is an apocalyptic number.

231016159 is a deficient number, since it is larger than the sum of its proper divisors (21001481).

231016159 is a wasteful number, since it uses less digits than its factorization.

231016159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21001480.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 231016159 is about 15199.2157363464. The cubic root of 231016159 is about 613.5935507423.

The spelling of 231016159 in words is "two hundred thirty-one million, sixteen thousand, one hundred fifty-nine".