145494163 has 4 divisors (see below), whose sum is σ = 145525248. Its totient is φ = 145463080.

The previous prime is 145494161. The next prime is 145494203. The reversal of 145494163 is 361494541.

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

It is a cyclic number.

It is not a de Polignac number, because 145494163 - 2¹ = 145494161 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145494161) 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, 6931 + ... + 18412.

It is an arithmetic number, because the mean of its divisors is an integer number (36381312).

Almost surely, 2^145494163 is an apocalyptic number.

145494163 is a deficient number, since it is larger than the sum of its proper divisors (31085).

145494163 is an equidigital number, since it uses as much as digits as its factorization.

145494163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31084.

The product of its digits is 51840, while the sum is 37.

The square root of 145494163 is about 12062.0961279539. The cubic root of 145494163 is about 525.9549217539.

The spelling of 145494163 in words is "one hundred forty-five million, four hundred ninety-four thousand, one hundred sixty-three".