216031157 has 8 divisors (see below), whose sum is σ = 232696320. Its totient is φ = 199972080.

The previous prime is 216031141. The next prime is 216031169. The reversal of 216031157 is 751130612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216031157 - 2⁴ = 216031141 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 (216031117) 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, 150782 + ... + 152207.

It is an arithmetic number, because the mean of its divisors is an integer number (29087040).

Almost surely, 2^216031157 is an apocalyptic number.

It is an amenable number.

216031157 is a deficient number, since it is larger than the sum of its proper divisors (16665163).

216031157 is a wasteful number, since it uses less digits than its factorization.

216031157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303043.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 216031157 is about 14697.9984011429. The cubic root of 216031157 is about 600.0288476871.

Adding to 216031157 its reverse (751130612), we get a palindrome (967161769).

The spelling of 216031157 in words is "two hundred sixteen million, thirty-one thousand, one hundred fifty-seven".