149811982147 has 2 divisors, whose sum is σ = 149811982148. Its totient is φ = 149811982146.

The previous prime is 149811982141. The next prime is 149811982157. The reversal of 149811982147 is 741289118941.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149811982147 - 2³ = 149811982139 is a prime.

It is not a weakly prime, because it can be changed into another prime (149811982141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74905991073 + 74905991074.

It is an arithmetic number, because the mean of its divisors is an integer number (74905991074).

Almost surely, 2^149811982147 is an apocalyptic number.

149811982147 is a deficient number, since it is larger than the sum of its proper divisors (1).

149811982147 is an equidigital number, since it uses as much as digits as its factorization.

149811982147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 55.

The spelling of 149811982147 in words is "one hundred forty-nine billion, eight hundred eleven million, nine hundred eighty-two thousand, one hundred forty-seven".