145509846 has 16 divisors (see below), whose sum is σ = 300407808. Its totient is φ = 46938600.

The previous prime is 145509803. The next prime is 145509853. The reversal of 145509846 is 648905541.

145509846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145509798 and 145509807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390970 + ... + 391341.

It is an arithmetic number, because the mean of its divisors is an integer number (18775488).

Almost surely, 2^145509846 is an apocalyptic number.

145509846 is an abundant number, since it is smaller than the sum of its proper divisors (154897962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145509846 is a wasteful number, since it uses less digits than its factorization.

145509846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782347.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 145509846 is about 12062.7462047413. The cubic root of 145509846 is about 525.9738188572.

The spelling of 145509846 in words is "one hundred forty-five million, five hundred nine thousand, eight hundred forty-six".