145219966 has 8 divisors (see below), whose sum is σ = 217944000. Its totient is φ = 72571968.

The previous prime is 145219927. The next prime is 145219979. The reversal of 145219966 is 669912541.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13966 + ... + 22033.

It is an arithmetic number, because the mean of its divisors is an integer number (27243000).

Almost surely, 2^145219966 is an apocalyptic number.

145219966 is a deficient number, since it is larger than the sum of its proper divisors (72724034).

145219966 is a wasteful number, since it uses less digits than its factorization.

145219966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38018.

The product of its digits is 116640, while the sum is 43.

The square root of 145219966 is about 12050.7247084978. The cubic root of 145219966 is about 525.6243106620.

The spelling of 145219966 in words is "one hundred forty-five million, two hundred nineteen thousand, nine hundred sixty-six".