155090833 has 2 divisors, whose sum is σ = 155090834. Its totient is φ = 155090832.

The previous prime is 155090827. The next prime is 155090851. The reversal of 155090833 is 338090551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136142224 + 18948609 = 11668^2 + 4353^2 .

It is a cyclic number.

It is not a de Polignac number, because 155090833 - 2⁵ = 155090801 is a prime.

It is not a weakly prime, because it can be changed into another prime (155090893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77545416 + 77545417.

It is an arithmetic number, because the mean of its divisors is an integer number (77545417).

Almost surely, 2^155090833 is an apocalyptic number.

It is an amenable number.

155090833 is a deficient number, since it is larger than the sum of its proper divisors (1).

155090833 is an equidigital number, since it uses as much as digits as its factorization.

155090833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 155090833 is about 12453.5470047694. The cubic root of 155090833 is about 537.2734453903.

The spelling of 155090833 in words is "one hundred fifty-five million, ninety thousand, eight hundred thirty-three".