144654731 has 4 divisors (see below), whose sum is σ = 155782032. Its totient is φ = 133527432.

The previous prime is 144654721. The next prime is 144654737. The reversal of 144654731 is 137456441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144654731 - 2¹⁸ = 144392587 is a prime.

It is a super-2 number, since 2×144654731² = 41849982401364722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144654691 and 144654700.

It is not an unprimeable number, because it can be changed into a prime (144654737) 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 3 ways as a sum of consecutive naturals, for example, 5563631 + ... + 5563656.

It is an arithmetic number, because the mean of its divisors is an integer number (38945508).

Almost surely, 2^144654731 is an apocalyptic number.

144654731 is a deficient number, since it is larger than the sum of its proper divisors (11127301).

144654731 is a wasteful number, since it uses less digits than its factorization.

144654731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11127300.

The product of its digits is 40320, while the sum is 35.

The square root of 144654731 is about 12027.2495193207. The cubic root of 144654731 is about 524.9414670949.

The spelling of 144654731 in words is "one hundred forty-four million, six hundred fifty-four thousand, seven hundred thirty-one".