248312906 has 16 divisors (see below), whose sum is σ = 385736040. Its totient is φ = 119743680.

The previous prime is 248312873. The next prime is 248312929. The reversal of 248312906 is 609213842.

It can be written as a sum of positive squares in 4 ways, for example, as 209062681 + 39250225 = 14459^2 + 6265^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70016 + ... + 73476.

Almost surely, 2^248312906 is an apocalyptic number.

248312906 is a deficient number, since it is larger than the sum of its proper divisors (137423134).

248312906 is a wasteful number, since it uses less digits than its factorization.

248312906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 248312906 is about 15757.9473917132. The cubic root of 248312906 is about 628.5402551394.

The spelling of 248312906 in words is "two hundred forty-eight million, three hundred twelve thousand, nine hundred six".