1146401563 has 4 divisors (see below), whose sum is σ = 1162105768. Its totient is φ = 1130697360.

The previous prime is 1146401539. The next prime is 1146401591. The reversal of 1146401563 is 3651046411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1146401563 - 2¹³ = 1146393371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1146401363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7851993 + ... + 7852138.

It is an arithmetic number, because the mean of its divisors is an integer number (290526442).

Almost surely, 2^1146401563 is an apocalyptic number.

1146401563 is a deficient number, since it is larger than the sum of its proper divisors (15704205).

1146401563 is an equidigital number, since it uses as much as digits as its factorization.

1146401563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15704204.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1146401563 is about 33858.5522874207. The cubic root of 1146401563 is about 1046.5956447790.

Adding to 1146401563 its reverse (3651046411), we get a palindrome (4797447974).

The spelling of 1146401563 in words is "one billion, one hundred forty-six million, four hundred one thousand, five hundred sixty-three".