1018140159 has 4 divisors (see below), whose sum is σ = 1357520216. Its totient is φ = 678760104.

The previous prime is 1018140131. The next prime is 1018140163. The reversal of 1018140159 is 9510418101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9510418101 = 3 ⋅3170139367.

It is not a de Polignac number, because 1018140159 - 2⁵ = 1018140127 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 (1018140169) 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, 169690024 + ... + 169690029.

It is an arithmetic number, because the mean of its divisors is an integer number (339380054).

Almost surely, 2^1018140159 is an apocalyptic number.

1018140159 is a deficient number, since it is larger than the sum of its proper divisors (339380057).

1018140159 is an equidigital number, since it uses as much as digits as its factorization.

1018140159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339380056.

The product of its (nonzero) digits is 1440, while the sum is 30.

The square root of 1018140159 is about 31908.3086201698. The cubic root of 1018140159 is about 1006.0105209255.

The spelling of 1018140159 in words is "one billion, eighteen million, one hundred forty thousand, one hundred fifty-nine".