154799369 has 2 divisors, whose sum is σ = 154799370. Its totient is φ = 154799368.

The previous prime is 154799363. The next prime is 154799371. The reversal of 154799369 is 963997451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116359369 + 38440000 = 10787^2 + 6200^2 .

It is a cyclic number.

It is not a de Polignac number, because 154799369 - 2¹² = 154795273 is a prime.

It is a super-2 number, since 2×154799369² = 47925689285596322, which contains 22 as substring.

Together with 154799371, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154799369.

It is not a weakly prime, because it can be changed into another prime (154799363) 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, 77399684 + 77399685.

It is an arithmetic number, because the mean of its divisors is an integer number (77399685).

Almost surely, 2^154799369 is an apocalyptic number.

It is an amenable number.

154799369 is a deficient number, since it is larger than the sum of its proper divisors (1).

154799369 is an equidigital number, since it uses as much as digits as its factorization.

154799369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 53.

The square root of 154799369 is about 12441.8394540357. The cubic root of 154799369 is about 536.9366662601.

The spelling of 154799369 in words is "one hundred fifty-four million, seven hundred ninety-nine thousand, three hundred sixty-nine".