144147997736 has 16 divisors (see below), whose sum is σ = 273314322900. Its totient is φ = 71264178304.

The previous prime is 144147997733. The next prime is 144147997739. The reversal of 144147997736 is 637799741441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (144147997733) and next prime (144147997739).

It can be written as a sum of positive squares in 2 ways, for example, as 137796864100 + 6351133636 = 371210^2 + 79694^2 .

It is a super-2 number, since 2×144147997736² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144147997733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101226815 + ... + 101228238.

Almost surely, 2^144147997736 is an apocalyptic number.

It is an amenable number.

144147997736 is a deficient number, since it is larger than the sum of its proper divisors (129166325164).

144147997736 is a wasteful number, since it uses less digits than its factorization.

144147997736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202455148 (or 202455144 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 62.

The spelling of 144147997736 in words is "one hundred forty-four billion, one hundred forty-seven million, nine hundred ninety-seven thousand, seven hundred thirty-six".