155230215541 has 2 divisors, whose sum is σ = 155230215542. Its totient is φ = 155230215540.

The previous prime is 155230215493. The next prime is 155230215551. The reversal of 155230215541 is 145512032551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139917143025 + 15313072516 = 374055^2 + 123746^2 .

It is a cyclic number.

It is not a de Polignac number, because 155230215541 - 2¹⁷ = 155230084469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155230215497 and 155230215506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155230215551) 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, 77615107770 + 77615107771.

It is an arithmetic number, because the mean of its divisors is an integer number (77615107771).

Almost surely, 2^155230215541 is an apocalyptic number.

It is an amenable number.

155230215541 is a deficient number, since it is larger than the sum of its proper divisors (1).

155230215541 is an equidigital number, since it uses as much as digits as its factorization.

155230215541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 155230215541 in words is "one hundred fifty-five billion, two hundred thirty million, two hundred fifteen thousand, five hundred forty-one".