155325061 has 2 divisors, whose sum is σ = 155325062. Its totient is φ = 155325060.

The previous prime is 155325047. The next prime is 155325077. The reversal of 155325061 is 160523551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146289025 + 9036036 = 12095^2 + 3006^2 .

It is a cyclic number.

It is not a de Polignac number, because 155325061 - 2⁵ = 155325029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155325011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77662530 + 77662531.

It is an arithmetic number, because the mean of its divisors is an integer number (77662531).

Almost surely, 2^155325061 is an apocalyptic number.

It is an amenable number.

155325061 is a deficient number, since it is larger than the sum of its proper divisors (1).

155325061 is an equidigital number, since it uses as much as digits as its factorization.

155325061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 155325061 is about 12462.9475245626. The cubic root of 155325061 is about 537.5437841384.

The spelling of 155325061 in words is "one hundred fifty-five million, three hundred twenty-five thousand, sixty-one".