154363949 has 2 divisors, whose sum is σ = 154363950. Its totient is φ = 154363948.

The previous prime is 154363919. The next prime is 154363967. The reversal of 154363949 is 949363451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152522500 + 1841449 = 12350^2 + 1357^2 .

It is an emirp because it is prime and its reverse (949363451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154363949 - 2¹⁶ = 154298413 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 (154363919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77181974 + 77181975.

It is an arithmetic number, because the mean of its divisors is an integer number (77181975).

Almost surely, 2^154363949 is an apocalyptic number.

It is an amenable number.

154363949 is a deficient number, since it is larger than the sum of its proper divisors (1).

154363949 is an equidigital number, since it uses as much as digits as its factorization.

154363949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 44.

The square root of 154363949 is about 12424.3289154787. The cubic root of 154363949 is about 536.4327612972.

The spelling of 154363949 in words is "one hundred fifty-four million, three hundred sixty-three thousand, nine hundred forty-nine".