154011149 has 2 divisors, whose sum is σ = 154011150. Its totient is φ = 154011148.

The previous prime is 154011139. The next prime is 154011157. The reversal of 154011149 is 941110451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153313924 + 697225 = 12382^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 154011149 - 2⁴ = 154011133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154011119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77005574 + 77005575.

It is an arithmetic number, because the mean of its divisors is an integer number (77005575).

Almost surely, 2^154011149 is an apocalyptic number.

It is an amenable number.

154011149 is a deficient number, since it is larger than the sum of its proper divisors (1).

154011149 is an equidigital number, since it uses as much as digits as its factorization.

154011149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 154011149 is about 12410.1228438723. The cubic root of 154011149 is about 536.0237758166.

The spelling of 154011149 in words is "one hundred fifty-four million, eleven thousand, one hundred forty-nine".