2148634747 has 16 divisors (see below), whose sum is σ = 2470482432. Its totient is φ = 1830548160.

The previous prime is 2148634727. The next prime is 2148634783. The reversal of 2148634747 is 7474368412.

It is a de Polignac number, because none of the positive numbers 2^k-2148634747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2148634697 and 2148634706.

It is not an unprimeable number, because it can be changed into a prime (2148634717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956808 + ... + 959050.

It is an arithmetic number, because the mean of its divisors is an integer number (154405152).

Almost surely, 2^2148634747 is an apocalyptic number.

2148634747 is a deficient number, since it is larger than the sum of its proper divisors (321847685).

2148634747 is a wasteful number, since it uses less digits than its factorization.

2148634747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018.

The product of its digits is 903168, while the sum is 46.

The square root of 2148634747 is about 46353.3682379177. The cubic root of 2148634747 is about 1290.3896319180.

The spelling of 2148634747 in words is "two billion, one hundred forty-eight million, six hundred thirty-four thousand, seven hundred forty-seven".