218795157 has 24 divisors (see below), whose sum is σ = 361655424. Its totient is φ = 124863264.

The previous prime is 218795141. The next prime is 218795167. The reversal of 218795157 is 751597812.

It is not a de Polignac number, because 218795157 - 2⁴ = 218795141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218795107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60163 + ... + 63695.

It is an arithmetic number, because the mean of its divisors is an integer number (15068976).

Almost surely, 2^218795157 is an apocalyptic number.

It is an amenable number.

218795157 is a deficient number, since it is larger than the sum of its proper divisors (142860267).

218795157 is a wasteful number, since it uses less digits than its factorization.

218795157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4529 (or 4526 counting only the distinct ones).

The product of its digits is 176400, while the sum is 45.

The square root of 218795157 is about 14791.7259642004. The cubic root of 218795157 is about 602.5770240652.

It can be divided in two parts, 2187 and 95157, that added together give a square (97344 = 312²).

The spelling of 218795157 in words is "two hundred eighteen million, seven hundred ninety-five thousand, one hundred fifty-seven".