145687567 has 2 divisors, whose sum is σ = 145687568. Its totient is φ = 145687566.

The previous prime is 145687523. The next prime is 145687583. The reversal of 145687567 is 765786541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145687567 - 2¹⁹ = 145163279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145687567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145687067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72843783 + 72843784.

It is an arithmetic number, because the mean of its divisors is an integer number (72843784).

Almost surely, 2^145687567 is an apocalyptic number.

145687567 is a deficient number, since it is larger than the sum of its proper divisors (1).

145687567 is an equidigital number, since it uses as much as digits as its factorization.

145687567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 49.

The square root of 145687567 is about 12070.1104800246. The cubic root of 145687567 is about 526.1878675167.

The spelling of 145687567 in words is "one hundred forty-five million, six hundred eighty-seven thousand, five hundred sixty-seven".