144747637 has 2 divisors, whose sum is σ = 144747638. Its totient is φ = 144747636.

The previous prime is 144747599. The next prime is 144747653. The reversal of 144747637 is 736747441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137381841 + 7365796 = 11721^2 + 2714^2 .

It is a cyclic number.

It is not a de Polignac number, because 144747637 - 2¹¹ = 144745589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144747593 and 144747602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144747667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72373818 + 72373819.

It is an arithmetic number, because the mean of its divisors is an integer number (72373819).

Almost surely, 2^144747637 is an apocalyptic number.

It is an amenable number.

144747637 is a deficient number, since it is larger than the sum of its proper divisors (1).

144747637 is an equidigital number, since it uses as much as digits as its factorization.

144747637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 43.

The square root of 144747637 is about 12031.1112121865. Note that the first 3 decimals coincide. The cubic root of 144747637 is about 525.0538260761.

The spelling of 144747637 in words is "one hundred forty-four million, seven hundred forty-seven thousand, six hundred thirty-seven".