154704149 has 2 divisors, whose sum is σ = 154704150. Its totient is φ = 154704148.

The previous prime is 154704107. The next prime is 154704157. The reversal of 154704149 is 941407451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126720049 + 27984100 = 11257^2 + 5290^2 .

It is an emirp because it is prime and its reverse (941407451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154704149 - 2¹² = 154700053 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154704349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77352074 + 77352075.

It is an arithmetic number, because the mean of its divisors is an integer number (77352075).

Almost surely, 2^154704149 is an apocalyptic number.

It is an amenable number.

154704149 is a deficient number, since it is larger than the sum of its proper divisors (1).

154704149 is an equidigital number, since it uses as much as digits as its factorization.

154704149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 154704149 is about 12438.0122608076. The cubic root of 154704149 is about 536.8265504020.

The spelling of 154704149 in words is "one hundred fifty-four million, seven hundred four thousand, one hundred forty-nine".