7281148923 has 12 divisors (see below), whose sum is σ = 10523981520. Its totient is φ = 4850976336.

The previous prime is 7281148907. The next prime is 7281148937. The reversal of 7281148923 is 3298411827.

It is a happy number.

7281148923 is a `hidden beast` number, since 72 + 81 + 1 + 489 + 23 = 666.

It is not a de Polignac number, because 7281148923 - 2⁴ = 7281148907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7281148723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245436 + ... + 273497.

It is an arithmetic number, because the mean of its divisors is an integer number (876998460).

Almost surely, 2^7281148923 is an apocalyptic number.

7281148923 is a deficient number, since it is larger than the sum of its proper divisors (3242832597).

7281148923 is a wasteful number, since it uses less digits than its factorization.

7281148923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520498 (or 520495 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 7281148923 is about 85329.6485578137. The cubic root of 7281148923 is about 1938.2061679404.

The spelling of 7281148923 in words is "seven billion, two hundred eighty-one million, one hundred forty-eight thousand, nine hundred twenty-three".