145806474 has 16 divisors (see below), whose sum is σ = 318123360. Its totient is φ = 44183760.

The previous prime is 145806457. The next prime is 145806487. The reversal of 145806474 is 474608541.

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 7 ways as a sum of consecutive naturals, for example, 1104529 + ... + 1104660.

It is an arithmetic number, because the mean of its divisors is an integer number (19882710).

Almost surely, 2^145806474 is an apocalyptic number.

145806474 is an abundant number, since it is smaller than the sum of its proper divisors (172316886).

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

145806474 is a wasteful number, since it uses less digits than its factorization.

145806474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209205.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 145806474 is about 12075.0351552283. The cubic root of 145806474 is about 526.3309829239.

The spelling of 145806474 in words is "one hundred forty-five million, eight hundred six thousand, four hundred seventy-four".