144137445 has 32 divisors (see below), whose sum is σ = 238961664. Its totient is φ = 74112000.

The previous prime is 144137443. The next prime is 144137467. The reversal of 144137445 is 544731441.

It is not a de Polignac number, because 144137445 - 2¹ = 144137443 is a prime.

It is a super-2 number, since 2×144137445² = 41551206102256050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144137443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186079 + ... + 186851.

It is an arithmetic number, because the mean of its divisors is an integer number (7467552).

Almost surely, 2^144137445 is an apocalyptic number.

144137445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144137445 is a deficient number, since it is larger than the sum of its proper divisors (94824219).

144137445 is a wasteful number, since it uses less digits than its factorization.

144137445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213.

The product of its digits is 26880, while the sum is 33.

The square root of 144137445 is about 12005.7255091061. The cubic root of 144137445 is about 524.3149886835.

Adding to 144137445 its reverse (544731441), we get a palindrome (688868886).

The spelling of 144137445 in words is "one hundred forty-four million, one hundred thirty-seven thousand, four hundred forty-five".