145986214 has 8 divisors (see below), whose sum is σ = 238886568. Its totient is φ = 66357360.

The previous prime is 145986167. The next prime is 145986227. The reversal of 145986214 is 412689541.

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

It is a super-3 number, since 3×145986214³ (a number of 25 digits) contains 333 as substring.

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, 3317847 + ... + 3317890.

It is an arithmetic number, because the mean of its divisors is an integer number (29860821).

Almost surely, 2^145986214 is an apocalyptic number.

145986214 is a deficient number, since it is larger than the sum of its proper divisors (92900354).

145986214 is a wasteful number, since it uses less digits than its factorization.

145986214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6635750.

The product of its digits is 69120, while the sum is 40.

The square root of 145986214 is about 12082.4754913883. The cubic root of 145986214 is about 526.5471687618.

The spelling of 145986214 in words is "one hundred forty-five million, nine hundred eighty-six thousand, two hundred fourteen".