145694818 has 8 divisors (see below), whose sum is σ = 218595420. Its totient is φ = 72829680.

The previous prime is 145694807. The next prime is 145694821. The reversal of 145694818 is 818496541.

It can be written as a sum of positive squares in 2 ways, for example, as 145033849 + 660969 = 12043^2 + 813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 7308 + ... + 18568.

Almost surely, 2^145694818 is an apocalyptic number.

145694818 is a deficient number, since it is larger than the sum of its proper divisors (72900602).

145694818 is a wasteful number, since it uses less digits than its factorization.

145694818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17732.

The product of its digits is 276480, while the sum is 46.

The square root of 145694818 is about 12070.4108463631. The cubic root of 145694818 is about 526.1965969848.

It can be divided in two parts, 14569481 and 8, that added together give a square (14569489 = 3817²).

The spelling of 145694818 in words is "one hundred forty-five million, six hundred ninety-four thousand, eight hundred eighteen".