1240346563 has 2 divisors, whose sum is σ = 1240346564. Its totient is φ = 1240346562.

The previous prime is 1240346539. The next prime is 1240346587. The reversal of 1240346563 is 3656430421.

It is a balanced prime because it is at equal distance from previous prime (1240346539) and next prime (1240346587).

It is a cyclic number.

It is not a de Polignac number, because 1240346563 - 2²⁹ = 703475651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240346533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620173281 + 620173282.

It is an arithmetic number, because the mean of its divisors is an integer number (620173282).

Almost surely, 2^1240346563 is an apocalyptic number.

1240346563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240346563 is an equidigital number, since it uses as much as digits as its factorization.

1240346563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 1240346563 is about 35218.5542434666. The cubic root of 1240346563 is about 1074.4371491602.

Adding to 1240346563 its reverse (3656430421), we get a palindrome (4896776984).

The spelling of 1240346563 in words is "one billion, two hundred forty million, three hundred forty-six thousand, five hundred sixty-three".