1145566031 has 8 divisors (see below), whose sum is σ = 1225628400. Its totient is φ = 1067480640.

The previous prime is 1145566027. The next prime is 1145566057. The reversal of 1145566031 is 1306655411.

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 1145566031 - 2² = 1145566027 is a prime.

It is a super-2 number, since 2×1145566031² = 2624643062762185922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145566061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493046 + ... + 495363.

It is an arithmetic number, because the mean of its divisors is an integer number (153203550).

Almost surely, 2^1145566031 is an apocalyptic number.

1145566031 is a deficient number, since it is larger than the sum of its proper divisors (80062369).

1145566031 is an equidigital number, since it uses as much as digits as its factorization.

1145566031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988489.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1145566031 is about 33846.2114718915. The cubic root of 1145566031 is about 1046.3413195025.

The spelling of 1145566031 in words is "one billion, one hundred forty-five million, five hundred sixty-six thousand, thirty-one".