1066245123 has 4 divisors (see below), whose sum is σ = 1421660168. Its totient is φ = 710830080.

The previous prime is 1066245113. The next prime is 1066245133. The reversal of 1066245123 is 3215426601.

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

It is an interprime number because it is at equal distance from previous prime (1066245113) and next prime (1066245133).

It is not a de Polignac number, because 1066245123 - 2¹⁰ = 1066244099 is a prime.

It is a super-2 number, since 2×1066245123² = 2273757324642570258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066245113) 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, 177707518 + ... + 177707523.

It is an arithmetic number, because the mean of its divisors is an integer number (355415042).

Almost surely, 2^1066245123 is an apocalyptic number.

1066245123 is a deficient number, since it is larger than the sum of its proper divisors (355415045).

1066245123 is an equidigital number, since it uses as much as digits as its factorization.

1066245123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355415044.

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

The square root of 1066245123 is about 32653.4090563298. The cubic root of 1066245123 is about 1021.6112950867.

The spelling of 1066245123 in words is "one billion, sixty-six million, two hundred forty-five thousand, one hundred twenty-three".