4148651523 has 4 divisors (see below), whose sum is σ = 5531535368. Its totient is φ = 2765767680.

The previous prime is 4148651513. The next prime is 4148651537. The reversal of 4148651523 is 3251568414.

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

It is not a de Polignac number, because 4148651523 - 2¹⁸ = 4148389379 is a prime.

It is a super-2 number, since 2×4148651523² = 34422618918580439058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4148651503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691441918 + ... + 691441923.

It is an arithmetic number, because the mean of its divisors is an integer number (1382883842).

Almost surely, 2^4148651523 is an apocalyptic number.

4148651523 is a deficient number, since it is larger than the sum of its proper divisors (1382883845).

4148651523 is a wasteful number, since it uses less digits than its factorization.

4148651523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382883844.

The product of its digits is 115200, while the sum is 39.

The square root of 4148651523 is about 64410.0265719554. The cubic root of 4148651523 is about 1606.8264999467.

The spelling of 4148651523 in words is "four billion, one hundred forty-eight million, six hundred fifty-one thousand, five hundred twenty-three".