145478246 has 8 divisors (see below), whose sum is σ = 219936000. Its totient is φ = 72166248.

The previous prime is 145478233. The next prime is 145478261. The reversal of 145478246 is 642874541.

145478246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×145478246³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

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, 286121 + ... + 286628.

It is an arithmetic number, because the mean of its divisors is an integer number (27492000).

Almost surely, 2^145478246 is an apocalyptic number.

145478246 is a deficient number, since it is larger than the sum of its proper divisors (74457754).

145478246 is a wasteful number, since it uses less digits than its factorization.

145478246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572878.

The product of its digits is 215040, while the sum is 41.

The square root of 145478246 is about 12061.4363157959. The cubic root of 145478246 is about 525.9357413056.

The spelling of 145478246 in words is "one hundred forty-five million, four hundred seventy-eight thousand, two hundred forty-six".