6155136243 has 32 divisors (see below), whose sum is σ = 9325900800. Its totient is φ = 4011228000.

The previous prime is 6155136227. The next prime is 6155136259. The reversal of 6155136243 is 3426315516.

6155136243 is a `hidden beast` number, since 6 + 1 + 551 + 3 + 62 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (6155136227) and next prime (6155136259).

It is not a de Polignac number, because 6155136243 - 2⁴ = 6155136227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6155136198 and 6155136207.

It is not an unprimeable number, because it can be changed into a prime (6155136223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201148 + ... + 229718.

It is an arithmetic number, because the mean of its divisors is an integer number (291434400).

Almost surely, 2^6155136243 is an apocalyptic number.

6155136243 is a deficient number, since it is larger than the sum of its proper divisors (3170764557).

6155136243 is a wasteful number, since it uses less digits than its factorization.

6155136243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28760 (or 28754 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 6155136243 is about 78454.6763615783. The cubic root of 6155136243 is about 1832.6487014311.

The spelling of 6155136243 in words is "six billion, one hundred fifty-five million, one hundred thirty-six thousand, two hundred forty-three".