145566998 has 8 divisors (see below), whose sum is σ = 218411400. Its totient is φ = 72763200.

The previous prime is 145566989. The next prime is 145567003. The reversal of 145566998 is 899665541.

It is a happy number.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1478 + ... + 17126.

It is an arithmetic number, because the mean of its divisors is an integer number (27301425).

Almost surely, 2^145566998 is an apocalyptic number.

145566998 is a deficient number, since it is larger than the sum of its proper divisors (72844402).

145566998 is a wasteful number, since it uses less digits than its factorization.

145566998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20302.

The product of its digits is 2332800, while the sum is 53.

The square root of 145566998 is about 12065.1149186404. The cubic root of 145566998 is about 526.0426722069.

The spelling of 145566998 in words is "one hundred forty-five million, five hundred sixty-six thousand, nine hundred ninety-eight".