180157211 has 24 divisors (see below), whose sum is σ = 209630160. Its totient is φ = 154192896.

The previous prime is 180157189. The next prime is 180157253. The reversal of 180157211 is 112751081.

It is a de Polignac number, because none of the positive numbers 2^k-180157211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180157261) 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, 209300 + ... + 210158.

It is an arithmetic number, because the mean of its divisors is an integer number (8734590).

Almost surely, 2^180157211 is an apocalyptic number.

180157211 is a deficient number, since it is larger than the sum of its proper divisors (29472949).

180157211 is a wasteful number, since it uses less digits than its factorization.

180157211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 26.

The square root of 180157211 is about 13422.2654943195. The cubic root of 180157211 is about 564.7859486238.

The spelling of 180157211 in words is "one hundred eighty million, one hundred fifty-seven thousand, two hundred eleven".