2146158523 has 4 divisors (see below), whose sum is σ = 2272403160. Its totient is φ = 2019913888.

The previous prime is 2146158503. The next prime is 2146158527. The reversal of 2146158523 is 3258516412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2146158523 - 2⁹ = 2146158011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2146158527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63122293 + ... + 63122326.

It is an arithmetic number, because the mean of its divisors is an integer number (568100790).

Almost surely, 2^2146158523 is an apocalyptic number.

2146158523 is a deficient number, since it is larger than the sum of its proper divisors (126244637).

2146158523 is a wasteful number, since it uses less digits than its factorization.

2146158523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126244636.

The product of its digits is 57600, while the sum is 37.

The square root of 2146158523 is about 46326.6502458358. The cubic root of 2146158523 is about 1289.8937322072.

The spelling of 2146158523 in words is "two billion, one hundred forty-six million, one hundred fifty-eight thousand, five hundred twenty-three".