145538287 has 2 divisors, whose sum is σ = 145538288. Its totient is φ = 145538286.

The previous prime is 145538231. The next prime is 145538321. The reversal of 145538287 is 782835541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145538287 - 2²³ = 137149679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145538587) 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, 72769143 + 72769144.

It is an arithmetic number, because the mean of its divisors is an integer number (72769144).

Almost surely, 2^145538287 is an apocalyptic number.

145538287 is a deficient number, since it is larger than the sum of its proper divisors (1).

145538287 is an equidigital number, since it uses as much as digits as its factorization.

145538287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268800, while the sum is 43.

The square root of 145538287 is about 12063.9250246344. The cubic root of 145538287 is about 526.0080851451.

The spelling of 145538287 in words is "one hundred forty-five million, five hundred thirty-eight thousand, two hundred eighty-seven".