145532687 has 2 divisors, whose sum is σ = 145532688. Its totient is φ = 145532686.

The previous prime is 145532677. The next prime is 145532731. The reversal of 145532687 is 786235541.

145532687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145532687 - 2⁶ = 145532623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145532627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72766343 + 72766344.

It is an arithmetic number, because the mean of its divisors is an integer number (72766344).

Almost surely, 2^145532687 is an apocalyptic number.

145532687 is a deficient number, since it is larger than the sum of its proper divisors (1).

145532687 is an equidigital number, since it uses as much as digits as its factorization.

145532687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 145532687 is about 12063.6929254686. The cubic root of 145532687 is about 526.0013385057.

The spelling of 145532687 in words is "one hundred forty-five million, five hundred thirty-two thousand, six hundred eighty-seven".