155241349 has 2 divisors, whose sum is σ = 155241350. Its totient is φ = 155241348.

The previous prime is 155241323. The next prime is 155241353. The reversal of 155241349 is 943142551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93508900 + 61732449 = 9670^2 + 7857^2 .

It is a cyclic number.

It is not a de Polignac number, because 155241349 - 2⁷ = 155241221 is a prime.

It is equal to p_8722339 and since 155241349 and 8722339 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155241389) 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, 77620674 + 77620675.

It is an arithmetic number, because the mean of its divisors is an integer number (77620675).

Almost surely, 2^155241349 is an apocalyptic number.

It is an amenable number.

155241349 is a deficient number, since it is larger than the sum of its proper divisors (1).

155241349 is an equidigital number, since it uses as much as digits as its factorization.

155241349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

The square root of 155241349 is about 12459.5886368692. The cubic root of 155241349 is about 537.4471975532.

The spelling of 155241349 in words is "one hundred fifty-five million, two hundred forty-one thousand, three hundred forty-nine".