157210018 has 16 divisors (see below), whose sum is σ = 275238144. Its totient is φ = 65941920.

The previous prime is 157209989. The next prime is 157210019. The reversal of 157210018 is 810012751.

It is a junction number, because it is equal to n+sod(n) for n = 157209974 and 157210001.

It is not an unprimeable number, because it can be changed into a prime (157210019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118803 + ... + 120118.

It is an arithmetic number, because the mean of its divisors is an integer number (17202384).

Almost surely, 2^157210018 is an apocalyptic number.

157210018 is a deficient number, since it is larger than the sum of its proper divisors (118028126).

157210018 is a wasteful number, since it uses less digits than its factorization.

157210018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238977.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 157210018 is about 12538.3419158994. The cubic root of 157210018 is about 539.7095122586.

Adding to 157210018 its reverse (810012751), we get a palindrome (967222769).

The spelling of 157210018 in words is "one hundred fifty-seven million, two hundred ten thousand, eighteen".