149644151 has 2 divisors, whose sum is σ = 149644152. Its totient is φ = 149644150.

The previous prime is 149644139. The next prime is 149644189. The reversal of 149644151 is 151446941.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149644151 - 2¹⁰ = 149643127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149644111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74822075 + 74822076.

It is an arithmetic number, because the mean of its divisors is an integer number (74822076).

Almost surely, 2^149644151 is an apocalyptic number.

149644151 is a deficient number, since it is larger than the sum of its proper divisors (1).

149644151 is an equidigital number, since it uses as much as digits as its factorization.

149644151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 149644151 is about 12232.9126131106. The cubic root of 149644151 is about 530.9087896885.

The spelling of 149644151 in words is "one hundred forty-nine million, six hundred forty-four thousand, one hundred fifty-one".