145500487 has 4 divisors (see below), whose sum is σ = 158727816. Its totient is φ = 132273160.

The previous prime is 145500479. The next prime is 145500491. The reversal of 145500487 is 784005541.

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 145500487 - 2³ = 145500479 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 (145500497) 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, 6613648 + ... + 6613669.

It is an arithmetic number, because the mean of its divisors is an integer number (39681954).

Almost surely, 2^145500487 is an apocalyptic number.

145500487 is a deficient number, since it is larger than the sum of its proper divisors (13227329).

145500487 is a wasteful number, since it uses less digits than its factorization.

145500487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13227328.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 145500487 is about 12062.3582685974. The cubic root of 145500487 is about 525.9625419696.

The spelling of 145500487 in words is "one hundred forty-five million, five hundred thousand, four hundred eighty-seven".