15181450147 has 2 divisors, whose sum is σ = 15181450148. Its totient is φ = 15181450146.

The previous prime is 15181450061. The next prime is 15181450171. The reversal of 15181450147 is 74105418151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15181450147 - 2¹¹ = 15181448099 is a prime.

It is not a weakly prime, because it can be changed into another prime (15181450187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7590725073 + 7590725074.

It is an arithmetic number, because the mean of its divisors is an integer number (7590725074).

Almost surely, 2^15181450147 is an apocalyptic number.

15181450147 is a deficient number, since it is larger than the sum of its proper divisors (1).

15181450147 is an equidigital number, since it uses as much as digits as its factorization.

15181450147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 37.

Adding to 15181450147 its reverse (74105418151), we get a palindrome (89286868298).

The spelling of 15181450147 in words is "fifteen billion, one hundred eighty-one million, four hundred fifty thousand, one hundred forty-seven".