1145640063 has 8 divisors (see below), whose sum is σ = 1531552000. Its totient is φ = 761744088.

The previous prime is 1145640059. The next prime is 1145640077. The reversal of 1145640063 is 3600465411.

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

It is not a de Polignac number, because 1145640063 - 2² = 1145640059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145640063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145640763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502663 + ... + 504936.

It is an arithmetic number, because the mean of its divisors is an integer number (191444000).

Almost surely, 2^1145640063 is an apocalyptic number.

1145640063 is a deficient number, since it is larger than the sum of its proper divisors (385911937).

1145640063 is a wasteful number, since it uses less digits than its factorization.

1145640063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007981.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1145640063 is about 33847.3051069062. The cubic root of 1145640063 is about 1046.3638588905.

The spelling of 1145640063 in words is "one billion, one hundred forty-five million, six hundred forty thousand, sixty-three".