145439166 has 32 divisors (see below), whose sum is σ = 313325568. Its totient is φ = 44874720.

The previous prime is 145439153. The next prime is 145439171. The reversal of 145439166 is 661934541.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12721 + ... + 21276.

It is an arithmetic number, because the mean of its divisors is an integer number (9791424).

Almost surely, 2^145439166 is an apocalyptic number.

145439166 is an abundant number, since it is smaller than the sum of its proper divisors (167886402).

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

145439166 is a wasteful number, since it uses less digits than its factorization.

145439166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34056.

The product of its digits is 77760, while the sum is 39.

The square root of 145439166 is about 12059.8161677531. The cubic root of 145439166 is about 525.8886428332. Note that the first 3 decimals are identical.

The spelling of 145439166 in words is "one hundred forty-five million, four hundred thirty-nine thousand, one hundred sixty-six".