144315747 has 12 divisors (see below), whose sum is σ = 208631280. Its totient is φ = 96129648.

The previous prime is 144315739. The next prime is 144315749. The reversal of 144315747 is 747513441.

It is not a de Polignac number, because 144315747 - 2³ = 144315739 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (144315749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5793 + ... + 17949.

It is an arithmetic number, because the mean of its divisors is an integer number (17385940).

Almost surely, 2^144315747 is an apocalyptic number.

144315747 is a deficient number, since it is larger than the sum of its proper divisors (64315533).

144315747 is a wasteful number, since it uses less digits than its factorization.

144315747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13482 (or 13479 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 144315747 is about 12013.1489210781. The cubic root of 144315747 is about 524.5310969708.

The spelling of 144315747 in words is "one hundred forty-four million, three hundred fifteen thousand, seven hundred forty-seven".