144641347637 has 4 divisors (see below), whose sum is σ = 146384014560. Its totient is φ = 142898680716.

The previous prime is 144641347621. The next prime is 144641347663. The reversal of 144641347637 is 736743146441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 736743146441 = 80557 ⋅9145613.

It is not a de Polignac number, because 144641347637 - 2⁴ = 144641347621 is a prime.

It is a super-2 number, since 2×144641347637² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144641347667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871333337 + ... + 871333502.

It is an arithmetic number, because the mean of its divisors is an integer number (36596003640).

Almost surely, 2^144641347637 is an apocalyptic number.

It is an amenable number.

144641347637 is a deficient number, since it is larger than the sum of its proper divisors (1742666923).

144641347637 is an equidigital number, since it uses as much as digits as its factorization.

144641347637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742666922.

The product of its digits is 4064256, while the sum is 50.

The spelling of 144641347637 in words is "one hundred forty-four billion, six hundred forty-one million, three hundred forty-seven thousand, six hundred thirty-seven".