1444129237 has 2 divisors, whose sum is σ = 1444129238. Its totient is φ = 1444129236.

The previous prime is 1444129231. The next prime is 1444129249. The reversal of 1444129237 is 7329214441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 934769476 + 509359761 = 30574^2 + 22569^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444129237 - 2³ = 1444129229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1444129196 and 1444129205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444129231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722064618 + 722064619.

It is an arithmetic number, because the mean of its divisors is an integer number (722064619).

Almost surely, 2^1444129237 is an apocalyptic number.

It is an amenable number.

1444129237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444129237 is an equidigital number, since it uses as much as digits as its factorization.

1444129237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 1444129237 is about 38001.7004487957. The cubic root of 1444129237 is about 1130.3215825799.

The spelling of 1444129237 in words is "one billion, four hundred forty-four million, one hundred twenty-nine thousand, two hundred thirty-seven".