1248865090 has 32 divisors (see below), whose sum is σ = 2459419200. Its totient is φ = 452817600.

The previous prime is 1248865081. The next prime is 1248865091. The reversal of 1248865090 is 905688421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1248865091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22125 + ... + 54655.

It is an arithmetic number, because the mean of its divisors is an integer number (76856850).

Almost surely, 2^1248865090 is an apocalyptic number.

1248865090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1248865090 is a deficient number, since it is larger than the sum of its proper divisors (1210554110).

1248865090 is a wasteful number, since it uses less digits than its factorization.

1248865090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32898.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1248865090 is about 35339.2853634592. The cubic root of 1248865090 is about 1076.8912343711.

The spelling of 1248865090 in words is "one billion, two hundred forty-eight million, eight hundred sixty-five thousand, ninety".