141224121509 has 2 divisors, whose sum is σ = 141224121510. Its totient is φ = 141224121508.

The previous prime is 141224121487. The next prime is 141224121547. The reversal of 141224121509 is 905121422141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110905650625 + 30318470884 = 333025^2 + 174122^2 .

It is a cyclic number.

It is not a de Polignac number, because 141224121509 - 2¹² = 141224117413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141224121569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70612060754 + 70612060755.

It is an arithmetic number, because the mean of its divisors is an integer number (70612060755).

Almost surely, 2^141224121509 is an apocalyptic number.

It is an amenable number.

141224121509 is a deficient number, since it is larger than the sum of its proper divisors (1).

141224121509 is an equidigital number, since it uses as much as digits as its factorization.

141224121509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 141224121509 in words is "one hundred forty-one billion, two hundred twenty-four million, one hundred twenty-one thousand, five hundred nine".