141451621 has 2 divisors, whose sum is σ = 141451622. Its totient is φ = 141451620.

The previous prime is 141451591. The next prime is 141451627. The reversal of 141451621 is 126154141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119464900 + 21986721 = 10930^2 + 4689^2 .

It is an emirp because it is prime and its reverse (126154141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141451621 - 2¹⁷ = 141320549 is a prime.

It is a super-2 number, since 2×141451621² = 40017122167055282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141451627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70725810 + 70725811.

It is an arithmetic number, because the mean of its divisors is an integer number (70725811).

Almost surely, 2^141451621 is an apocalyptic number.

It is an amenable number.

141451621 is a deficient number, since it is larger than the sum of its proper divisors (1).

141451621 is an equidigital number, since it uses as much as digits as its factorization.

141451621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 25.

The square root of 141451621 is about 11893.3435584784. The cubic root of 141451621 is about 521.0378937542.

It can be divided in two parts, 1414 and 51621, that added together give a palindrome (53035).

The spelling of 141451621 in words is "one hundred forty-one million, four hundred fifty-one thousand, six hundred twenty-one".