145066169 has 4 divisors (see below), whose sum is σ = 145102080. Its totient is φ = 145030260.

The previous prime is 145066157. The next prime is 145066177. The reversal of 145066169 is 961660541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961660541 = 701 ⋅1371841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145066169 is a prime.

It is a super-2 number, since 2×145066169² = 42088386776673122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145066469) 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, 10997 + ... + 20274.

It is an arithmetic number, because the mean of its divisors is an integer number (36275520).

Almost surely, 2^145066169 is an apocalyptic number.

It is an amenable number.

145066169 is a deficient number, since it is larger than the sum of its proper divisors (35911).

145066169 is an equidigital number, since it uses as much as digits as its factorization.

145066169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35910.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 145066169 is about 12044.3417835928. The cubic root of 145066169 is about 525.4386888105.

The spelling of 145066169 in words is "one hundred forty-five million, sixty-six thousand, one hundred sixty-nine".