145683287 has 2 divisors, whose sum is σ = 145683288. Its totient is φ = 145683286.

The previous prime is 145683281. The next prime is 145683301. The reversal of 145683287 is 782386541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145683287 - 2¹⁴ = 145666903 is a prime.

It is a super-2 number, since 2×145683287² = 42447240222248738, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145683281) 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 as a sum of consecutive naturals, namely, 72841643 + 72841644.

It is an arithmetic number, because the mean of its divisors is an integer number (72841644).

Almost surely, 2^145683287 is an apocalyptic number.

145683287 is a deficient number, since it is larger than the sum of its proper divisors (1).

145683287 is an equidigital number, since it uses as much as digits as its factorization.

145683287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 44.

The square root of 145683287 is about 12069.9331812566. The cubic root of 145683287 is about 526.1827146951.

The spelling of 145683287 in words is "one hundred forty-five million, six hundred eighty-three thousand, two hundred eighty-seven".