145665514 has 16 divisors (see below), whose sum is σ = 233153280. Its totient is φ = 68052960.

The previous prime is 145665511. The next prime is 145665523. The reversal of 145665514 is 415566541.

It is not an unprimeable number, because it can be changed into a prime (145665511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23482 + ... + 29029.

It is an arithmetic number, because the mean of its divisors is an integer number (14572080).

Almost surely, 2^145665514 is an apocalyptic number.

145665514 is a deficient number, since it is larger than the sum of its proper divisors (87487766).

145665514 is a wasteful number, since it uses less digits than its factorization.

145665514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52605.

The product of its digits is 72000, while the sum is 37.

The square root of 145665514 is about 12069.1969078311. The cubic root of 145665514 is about 526.1613161624.

The spelling of 145665514 in words is "one hundred forty-five million, six hundred sixty-five thousand, five hundred fourteen".