1240712827 has 8 divisors (see below), whose sum is σ = 1249233440. Its totient is φ = 1232210880.

The previous prime is 1240712821. The next prime is 1240712833. The reversal of 1240712827 is 7282170421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1240712821) and next prime (1240712833).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240712827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240712792 and 1240712801.

It is not an unprimeable number, because it can be changed into a prime (1240712821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144799 + ... + 153127.

It is an arithmetic number, because the mean of its divisors is an integer number (156154180).

Almost surely, 2^1240712827 is an apocalyptic number.

1240712827 is a deficient number, since it is larger than the sum of its proper divisors (8520613).

1240712827 is an equidigital number, since it uses as much as digits as its factorization.

1240712827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9333.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 1240712827 is about 35223.7537323892. The cubic root of 1240712827 is about 1074.5428961966.

The spelling of 1240712827 in words is "one billion, two hundred forty million, seven hundred twelve thousand, eight hundred twenty-seven".