144614742157 has 4 divisors (see below), whose sum is σ = 144616094140. Its totient is φ = 144613390176.

The previous prime is 144614742121. The next prime is 144614742257. The reversal of 144614742157 is 751247416441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751247416441 = 9007 ⋅83407063.

It can be written as a sum of positive squares in 2 ways, for example, as 70228180036 + 74386562121 = 265006^2 + 272739^2 .

It is a cyclic number.

It is not a de Polignac number, because 144614742157 - 2¹⁵ = 144614709389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144614742257) 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, 500328 + ... + 734545.

It is an arithmetic number, because the mean of its divisors is an integer number (36154023535).

Almost surely, 2^144614742157 is an apocalyptic number.

It is an amenable number.

144614742157 is a deficient number, since it is larger than the sum of its proper divisors (1351983).

144614742157 is a wasteful number, since it uses less digits than its factorization.

144614742157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351982.

The product of its digits is 752640, while the sum is 46.

The spelling of 144614742157 in words is "one hundred forty-four billion, six hundred fourteen million, seven hundred forty-two thousand, one hundred fifty-seven".