144016731 has 32 divisors (see below), whose sum is σ = 229847040. Its totient is φ = 88862400.

The previous prime is 144016727. The next prime is 144016753. The reversal of 144016731 is 137610441.

It is a happy number.

It is not a de Polignac number, because 144016731 - 2² = 144016727 is a prime.

It is a super-2 number, since 2×144016731² = 41481637615852722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 144016695 and 144016704.

It is not an unprimeable number, because it can be changed into a prime (144016721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15511 + ... + 22991.

It is an arithmetic number, because the mean of its divisors is an integer number (7182720).

Almost surely, 2^144016731 is an apocalyptic number.

144016731 is a deficient number, since it is larger than the sum of its proper divisors (85830309).

144016731 is a wasteful number, since it uses less digits than its factorization.

144016731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7544 (or 7538 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 144016731 is about 12000.6971047519. The cubic root of 144016731 is about 524.1685778817.

The spelling of 144016731 in words is "one hundred forty-four million, sixteen thousand, seven hundred thirty-one".