216156141 has 64 divisors (see below), whose sum is σ = 354816000. Its totient is φ = 129548160.

The previous prime is 216156131. The next prime is 216156151. The reversal of 216156141 is 141651612.

216156141 is a `hidden beast` number, since 2 + 1 + 61 + 561 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (216156131) and next prime (216156151).

It is not a de Polignac number, because 216156141 - 2¹⁴ = 216139757 is a prime.

It is a super-3 number, since 3×216156141³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216156121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 904300 + ... + 904538.

It is an arithmetic number, because the mean of its divisors is an integer number (5544000).

Almost surely, 2^216156141 is an apocalyptic number.

It is an amenable number.

216156141 is a deficient number, since it is larger than the sum of its proper divisors (138659859).

216156141 is a wasteful number, since it uses less digits than its factorization.

216156141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 345 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 216156141 is about 14702.2495217569. The cubic root of 216156141 is about 600.1445401774.

The spelling of 216156141 in words is "two hundred sixteen million, one hundred fifty-six thousand, one hundred forty-one".