2158152681 has 8 divisors (see below), whose sum is σ = 2926308960. Its totient is φ = 1414382432.

The previous prime is 2158152679. The next prime is 2158152719. The reversal of 2158152681 is 1862518512.

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 2158152681 - 2¹ = 2158152679 is a prime.

It is a super-2 number, since 2×2158152681² = 9315245989014975522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2158152181) 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, 6096300 + ... + 6096653.

It is an arithmetic number, because the mean of its divisors is an integer number (365788620).

Almost surely, 2^2158152681 is an apocalyptic number.

It is an amenable number.

2158152681 is a deficient number, since it is larger than the sum of its proper divisors (768156279).

2158152681 is a wasteful number, since it uses less digits than its factorization.

2158152681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12193015.

The product of its digits is 38400, while the sum is 39.

The square root of 2158152681 is about 46455.9219152951. The cubic root of 2158152681 is about 1292.2921970492.

The spelling of 2158152681 in words is "two billion, one hundred fifty-eight million, one hundred fifty-two thousand, six hundred eighty-one".