488143945 has 4 divisors (see below), whose sum is σ = 585772740. Its totient is φ = 390515152.

The previous prime is 488143913. The next prime is 488143987. The reversal of 488143945 is 549341884.

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

It can be written as a sum of positive squares in 2 ways, for example, as 349540416 + 138603529 = 18696^2 + 11773^2 .

It is a cyclic number.

It is not a de Polignac number, because 488143945 - 2⁵ = 488143913 is a prime.

It is a super-2 number, since 2×488143945² = 476569022080326050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 488143895 and 488143904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48814390 + ... + 48814399.

It is an arithmetic number, because the mean of its divisors is an integer number (146443185).

Almost surely, 2^488143945 is an apocalyptic number.

It is an amenable number.

488143945 is a deficient number, since it is larger than the sum of its proper divisors (97628795).

488143945 is an equidigital number, since it uses as much as digits as its factorization.

488143945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97628794.

The product of its digits is 552960, while the sum is 46.

The square root of 488143945 is about 22093.9798361454. The cubic root of 488143945 is about 787.3768387219.

The spelling of 488143945 in words is "four hundred eighty-eight million, one hundred forty-three thousand, nine hundred forty-five".