145890546 has 16 divisors (see below), whose sum is σ = 298898208. Its totient is φ = 47444000.

The previous prime is 145890533. The next prime is 145890551. The reversal of 145890546 is 645098541.

It is a junction number, because it is equal to n+sod(n) for n = 145890498 and 145890507.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 296280 + ... + 296771.

It is an arithmetic number, because the mean of its divisors is an integer number (18681138).

Almost surely, 2^145890546 is an apocalyptic number.

145890546 is an abundant number, since it is smaller than the sum of its proper divisors (153007662).

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

145890546 is a wasteful number, since it uses less digits than its factorization.

145890546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593097.

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

The square root of 145890546 is about 12078.5158856542. The cubic root of 145890546 is about 526.4321242864.

The spelling of 145890546 in words is "one hundred forty-five million, eight hundred ninety thousand, five hundred forty-six".