145484687 has 4 divisors (see below), whose sum is σ = 149033136. Its totient is φ = 141936240.

The previous prime is 145484681. The next prime is 145484699. The reversal of 145484687 is 786484541.

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 145484687 - 2¹⁸ = 145222543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145484681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1774163 + ... + 1774244.

It is an arithmetic number, because the mean of its divisors is an integer number (37258284).

Almost surely, 2^145484687 is an apocalyptic number.

145484687 is a deficient number, since it is larger than the sum of its proper divisors (3548449).

145484687 is an equidigital number, since it uses as much as digits as its factorization.

145484687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548448.

The product of its digits is 860160, while the sum is 47.

The square root of 145484687 is about 12061.7033208415. The cubic root of 145484687 is about 525.9435030666.

The spelling of 145484687 in words is "one hundred forty-five million, four hundred eighty-four thousand, six hundred eighty-seven".