144025731 has 12 divisors (see below), whose sum is σ = 208216008. Its totient is φ = 95934624.

The previous prime is 144025729. The next prime is 144025741. The reversal of 144025731 is 137520441.

It is not a de Polignac number, because 144025731 - 2¹ = 144025729 is a prime.

It is a super-2 number, since 2×144025731² = 41486822380168722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144025695 and 144025704.

It is not an unprimeable number, because it can be changed into a prime (144025711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5311 + ... + 17783.

It is an arithmetic number, because the mean of its divisors is an integer number (17351334).

Almost surely, 2^144025731 is an apocalyptic number.

144025731 is a deficient number, since it is larger than the sum of its proper divisors (64190277).

144025731 is a wasteful number, since it uses less digits than its factorization.

144025731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13762 (or 13759 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 144025731 is about 12001.0720771104. The cubic root of 144025731 is about 524.1794965643.

The spelling of 144025731 in words is "one hundred forty-four million, twenty-five thousand, seven hundred thirty-one".