1145640601 has 8 divisors (see below), whose sum is σ = 1311030144. Its totient is φ = 980682720.

The previous prime is 1145640581. The next prime is 1145640607. The reversal of 1145640601 is 1060465411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145640601 - 2¹¹ = 1145638553 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 1145640601.

It is not an unprimeable number, because it can be changed into a prime (1145640607) 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, 102205 + ... + 112858.

It is an arithmetic number, because the mean of its divisors is an integer number (163878768).

Almost surely, 2^1145640601 is an apocalyptic number.

It is an amenable number.

1145640601 is a deficient number, since it is larger than the sum of its proper divisors (165389543).

1145640601 is an equidigital number, since it uses as much as digits as its factorization.

1145640601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215831.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1145640601 is about 33847.3130543622. The cubic root of 1145640601 is about 1046.3640226836.

The spelling of 1145640601 in words is "one billion, one hundred forty-five million, six hundred forty thousand, six hundred one".