2146251847 has 4 divisors (see below), whose sum is σ = 2146347000. Its totient is φ = 2146156696.

The previous prime is 2146251841. The next prime is 2146251857. The reversal of 2146251847 is 7481526412.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2146251847 - 2³ = 2146251839 is a prime.

It is a super-2 number, since 2×2146251847² = 9212793981501822818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146251841) 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, 7548 + ... + 65950.

It is an arithmetic number, because the mean of its divisors is an integer number (536586750).

Almost surely, 2^2146251847 is an apocalyptic number.

2146251847 is a deficient number, since it is larger than the sum of its proper divisors (95153).

2146251847 is an equidigital number, since it uses as much as digits as its factorization.

2146251847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95152.

The product of its digits is 107520, while the sum is 40.

The square root of 2146251847 is about 46327.6574736949. The cubic root of 2146251847 is about 1289.9124286046.

The spelling of 2146251847 in words is "two billion, one hundred forty-six million, two hundred fifty-one thousand, eight hundred forty-seven".