1456220141 has 2 divisors, whose sum is σ = 1456220142. Its totient is φ = 1456220140.

The previous prime is 1456220107. The next prime is 1456220149. The reversal of 1456220141 is 1410226541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1372406116 + 83814025 = 37046^2 + 9155^2 .

It is an emirp because it is prime and its reverse (1410226541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1456220141 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1456220141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1456220149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728110070 + 728110071.

It is an arithmetic number, because the mean of its divisors is an integer number (728110071).

Almost surely, 2^1456220141 is an apocalyptic number.

It is an amenable number.

1456220141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1456220141 is an equidigital number, since it uses as much as digits as its factorization.

1456220141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1456220141 is about 38160.4525785531. The cubic root of 1456220141 is about 1133.4673410072.

Adding to 1456220141 its reverse (1410226541), we get a palindrome (2866446682).

The spelling of 1456220141 in words is "one billion, four hundred fifty-six million, two hundred twenty thousand, one hundred forty-one".