145244587 has 2 divisors, whose sum is σ = 145244588. Its totient is φ = 145244586.

The previous prime is 145244537. The next prime is 145244597. The reversal of 145244587 is 785442541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145244587 is a prime.

It is not a weakly prime, because it can be changed into another prime (145244507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72622293 + 72622294.

It is an arithmetic number, because the mean of its divisors is an integer number (72622294).

Almost surely, 2^145244587 is an apocalyptic number.

145244587 is a deficient number, since it is larger than the sum of its proper divisors (1).

145244587 is an equidigital number, since it uses as much as digits as its factorization.

145244587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 179200, while the sum is 40.

The square root of 145244587 is about 12051.7462220211. The cubic root of 145244587 is about 525.6540142563.

The spelling of 145244587 in words is "one hundred forty-five million, two hundred forty-four thousand, five hundred eighty-seven".