145308578 has 8 divisors (see below), whose sum is σ = 218327340. Its totient is φ = 72532800.

The previous prime is 145308577. The next prime is 145308587. The reversal of 145308578 is 875803541.

It can be written as a sum of positive squares in 2 ways, for example, as 133564249 + 11744329 = 11557^2 + 3427^2 .

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

It is a super-2 number, since 2×145308578² = 42229165680764168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145308577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59243 + ... + 61646.

Almost surely, 2^145308578 is an apocalyptic number.

145308578 is a deficient number, since it is larger than the sum of its proper divisors (73018762).

145308578 is a wasteful number, since it uses less digits than its factorization.

145308578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121492.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 145308578 is about 12054.4007731616. The cubic root of 145308578 is about 525.7311994330.

The spelling of 145308578 in words is "one hundred forty-five million, three hundred eight thousand, five hundred seventy-eight".