144500731 has 8 divisors (see below), whose sum is σ = 153433440. Its totient is φ = 135616128.

The previous prime is 144500711. The next prime is 144500753. The reversal of 144500731 is 137005441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144500731 - 2²¹ = 142403579 is a prime.

It is a super-2 number, since 2×144500731² = 41760922519068722, 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 = 144500696 and 144500705.

It is not an unprimeable number, because it can be changed into a prime (144500711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5736 + ... + 17941.

It is an arithmetic number, because the mean of its divisors is an integer number (19179180).

Almost surely, 2^144500731 is an apocalyptic number.

144500731 is a deficient number, since it is larger than the sum of its proper divisors (8932709).

144500731 is a wasteful number, since it uses less digits than its factorization.

144500731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24053.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 144500731 is about 12020.8456857244. The cubic root of 144500731 is about 524.7551160270.

The spelling of 144500731 in words is "one hundred forty-four million, five hundred thousand, seven hundred thirty-one".