1248859090 has 32 divisors (see below), whose sum is σ = 2311110144. Its totient is φ = 485649600.

The previous prime is 1248859069. The next prime is 1248859093. The reversal of 1248859090 is 909588421.

It is a self number, because there is not a number n which added to its sum of digits gives 1248859090.

It is not an unprimeable number, because it can be changed into a prime (1248859093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62172 + ... + 79768.

It is an arithmetic number, because the mean of its divisors is an integer number (72222192).

Almost surely, 2^1248859090 is an apocalyptic number.

1248859090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1248859090 is a deficient number, since it is larger than the sum of its proper divisors (1062251054).

1248859090 is a wasteful number, since it uses less digits than its factorization.

1248859090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17802.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 1248859090 is about 35339.2004719971. The cubic root of 1248859090 is about 1076.8895097766.

The spelling of 1248859090 in words is "one billion, two hundred forty-eight million, eight hundred fifty-nine thousand, ninety".