2148547969 has 32 divisors (see below), whose sum is σ = 2386298880. Its totient is φ = 1928640000.

The previous prime is 2148547943. The next prime is 2148547993. The reversal of 2148547969 is 9697458412.

It is not a de Polignac number, because 2148547969 - 2⁵ = 2148547937 is a prime.

It is a super-2 number, since 2×2148547969² = 9232516750188049922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148547939) 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, 2616579 + ... + 2617399.

It is an arithmetic number, because the mean of its divisors is an integer number (74571840).

Almost surely, 2^2148547969 is an apocalyptic number.

2148547969 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2148547969 is a deficient number, since it is larger than the sum of its proper divisors (237750911).

2148547969 is a wasteful number, since it uses less digits than its factorization.

2148547969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993.

The product of its digits is 4354560, while the sum is 55.

The square root of 2148547969 is about 46352.4321799838. The cubic root of 2148547969 is about 1290.3722598109.

The spelling of 2148547969 in words is "two billion, one hundred forty-eight million, five hundred forty-seven thousand, nine hundred sixty-nine".