1440214242157 has 2 divisors, whose sum is σ = 1440214242158. Its totient is φ = 1440214242156.

The previous prime is 1440214242067. The next prime is 1440214242163. The reversal of 1440214242157 is 7512424120441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 906772444516 + 533441797641 = 952246^2 + 730371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440214242157 - 2¹⁹ = 1440213717869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440214242557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720107121078 + 720107121079.

It is an arithmetic number, because the mean of its divisors is an integer number (720107121079).

Almost surely, 2^{1440214242157} is an apocalyptic number.

It is an amenable number.

1440214242157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440214242157 is an equidigital number, since it uses as much as digits as its factorization.

1440214242157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 37.

Adding to 1440214242157 its reverse (7512424120441), we get a palindrome (8952638362598).

The spelling of 1440214242157 in words is "one trillion, four hundred forty billion, two hundred fourteen million, two hundred forty-two thousand, one hundred fifty-seven".