144673687 has 2 divisors, whose sum is σ = 144673688. Its totient is φ = 144673686.

The previous prime is 144673651. The next prime is 144673691. The reversal of 144673687 is 786376441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144673687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144676687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72336843 + 72336844.

It is an arithmetic number, because the mean of its divisors is an integer number (72336844).

Almost surely, 2^144673687 is an apocalyptic number.

144673687 is a deficient number, since it is larger than the sum of its proper divisors (1).

144673687 is an equidigital number, since it uses as much as digits as its factorization.

144673687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 46.

The square root of 144673687 is about 12028.0375373541. The cubic root of 144673687 is about 524.9643960738.

The spelling of 144673687 in words is "one hundred forty-four million, six hundred seventy-three thousand, six hundred eighty-seven".