1391245060 has 24 divisors (see below), whose sum is σ = 2922708096. Its totient is φ = 556289760.

The previous prime is 1391245057. The next prime is 1391245109. The reversal of 1391245060 is 605421931.

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, 48955 + ... + 71965.

It is an arithmetic number, because the mean of its divisors is an integer number (121779504).

Almost surely, 2^1391245060 is an apocalyptic number.

1391245060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1391245060 is an abundant number, since it is smaller than the sum of its proper divisors (1531463036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1391245060 is a wasteful number, since it uses less digits than its factorization.

1391245060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26043 (or 26041 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1391245060 is about 37299.3975822667. The cubic root of 1391245060 is about 1116.3521464643.

Adding to 1391245060 its reverse (605421931), we get a palindrome (1996666991).

The spelling of 1391245060 in words is "one billion, three hundred ninety-one million, two hundred forty-five thousand, sixty".