145144658 has 8 divisors (see below), whose sum is σ = 219644028. Its totient is φ = 71929984.

The previous prime is 145144639. The next prime is 145144663. The reversal of 145144658 is 856441541.

145144658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 133564249 + 11580409 = 11557^2 + 3403^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320891 + ... + 321342.

Almost surely, 2^145144658 is an apocalyptic number.

145144658 is a deficient number, since it is larger than the sum of its proper divisors (74499370).

145144658 is a wasteful number, since it uses less digits than its factorization.

145144658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642348.

The product of its digits is 76800, while the sum is 38.

The square root of 145144658 is about 12047.5996779442. The cubic root of 145144658 is about 525.5334357384.

The spelling of 145144658 in words is "one hundred forty-five million, one hundred forty-four thousand, six hundred fifty-eight".