1248565090 has 32 divisors (see below), whose sum is σ = 2264785920. Its totient is φ = 495580800.

The previous prime is 1248565049. The next prime is 1248565091. The reversal of 1248565090 is 905658421.

It is not an unprimeable number, because it can be changed into a prime (1248565091) 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, 1453081 + ... + 1453939.

It is an arithmetic number, because the mean of its divisors is an integer number (70774560).

Almost surely, 2^1248565090 is an apocalyptic number.

1248565090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1248565090 is a deficient number, since it is larger than the sum of its proper divisors (1016220830).

1248565090 is a wasteful number, since it uses less digits than its factorization.

1248565090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1248565090 is about 35335.0405405173. The cubic root of 1248565090 is about 1076.8049978766.

The spelling of 1248565090 in words is "one billion, two hundred forty-eight million, five hundred sixty-five thousand, ninety".