145680587 has 4 divisors (see below), whose sum is σ = 156886800. Its totient is φ = 134474376.

The previous prime is 145680553. The next prime is 145680611. The reversal of 145680587 is 785086541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145680587 - 2⁶ = 145680523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145280587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5603087 + ... + 5603112.

It is an arithmetic number, because the mean of its divisors is an integer number (39221700).

Almost surely, 2^145680587 is an apocalyptic number.

145680587 is a deficient number, since it is larger than the sum of its proper divisors (11206213).

145680587 is a wasteful number, since it uses less digits than its factorization.

145680587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11206212.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 145680587 is about 12069.8213325633. The cubic root of 145680587 is about 526.1794640314.

The spelling of 145680587 in words is "one hundred forty-five million, six hundred eighty thousand, five hundred eighty-seven".