144135731 has 2 divisors, whose sum is σ = 144135732. Its totient is φ = 144135730.

The previous prime is 144135727. The next prime is 144135811. The reversal of 144135731 is 137531441.

144135731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144135731 - 2² = 144135727 is a prime.

It is a super-2 number, since 2×144135731² = 41550217901808722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144135694 and 144135703.

It is not a weakly prime, because it can be changed into another prime (144135031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72067865 + 72067866.

It is an arithmetic number, because the mean of its divisors is an integer number (72067866).

Almost surely, 2^144135731 is an apocalyptic number.

144135731 is a deficient number, since it is larger than the sum of its proper divisors (1).

144135731 is an equidigital number, since it uses as much as digits as its factorization.

144135731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 144135731 is about 12005.6541262857. The cubic root of 144135731 is about 524.3129103906.

The spelling of 144135731 in words is "one hundred forty-four million, one hundred thirty-five thousand, seven hundred thirty-one".