157018 has 4 divisors (see below), whose sum is σ = 235530. Its totient is φ = 78508.

The previous prime is 157013. The next prime is 157019. The reversal of 157018 is 810751.

157018 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, and also an emirpimes, since its reverse is a distinct semiprime: 810751 = 61 ⋅13291.

It can be written as a sum of positive squares in only one way, i.e., 97969 + 59049 = 313^2 + 243^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 157018.

It is not an unprimeable number, because it can be changed into a prime (157013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39253 + ... + 39256.

2¹⁵⁷⁰¹⁸ is an apocalyptic number.

157018 is a deficient number, since it is larger than the sum of its proper divisors (78512).

157018 is an equidigital number, since it uses as much as digits as its factorization.

157018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78511.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 157018 is about 396.2549684231. The cubic root of 157018 is about 53.9489687076.

Adding to 157018 its reverse (810751), we get a palindrome (967769).

The spelling of 157018 in words is "one hundred fifty-seven thousand, eighteen".