145795178 has 4 divisors (see below), whose sum is σ = 218692770. Its totient is φ = 72897588.

The previous prime is 145795157. The next prime is 145795219. The reversal of 145795178 is 871597541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 871597541 = 197 ⋅4424353.

It can be written as a sum of positive squares in only one way, i.e., 135187129 + 10608049 = 11627^2 + 3257^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36448793 + ... + 36448796.

Almost surely, 2^145795178 is an apocalyptic number.

145795178 is a deficient number, since it is larger than the sum of its proper divisors (72897592).

145795178 is an equidigital number, since it uses as much as digits as its factorization.

145795178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72897591.

The product of its digits is 352800, while the sum is 47.

The square root of 145795178 is about 12074.5674042593. The cubic root of 145795178 is about 526.3173905043.

The spelling of 145795178 in words is "one hundred forty-five million, seven hundred ninety-five thousand, one hundred seventy-eight".