145786998 has 32 divisors (see below), whose sum is σ = 337927680. Its totient is φ = 41065920.

The previous prime is 145786961. The next prime is 145787009. The reversal of 145786998 is 899687541.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 21463 + ... + 27426.

It is an arithmetic number, because the mean of its divisors is an integer number (10560240).

Almost surely, 2^145786998 is an apocalyptic number.

145786998 is an abundant number, since it is smaller than the sum of its proper divisors (192140682).

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

145786998 is a wasteful number, since it uses less digits than its factorization.

145786998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48972.

The product of its digits is 4354560, while the sum is 57.

The square root of 145786998 is about 12074.2286710166. The cubic root of 145786998 is about 526.3075471134.

The spelling of 145786998 in words is "one hundred forty-five million, seven hundred eighty-six thousand, nine hundred ninety-eight".