155027801 has 2 divisors, whose sum is σ = 155027802. Its totient is φ = 155027800.

The previous prime is 155027737. The next prime is 155027839. The reversal of 155027801 is 108720551.

155027801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155027401 + 400 = 12451^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 155027801 - 2⁶ = 155027737 is a prime.

It is not a weakly prime, because it can be changed into another prime (155027101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77513900 + 77513901.

It is an arithmetic number, because the mean of its divisors is an integer number (77513901).

Almost surely, 2^155027801 is an apocalyptic number.

It is an amenable number.

155027801 is a deficient number, since it is larger than the sum of its proper divisors (1).

155027801 is an equidigital number, since it uses as much as digits as its factorization.

155027801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 155027801 is about 12451.0160629565. The cubic root of 155027801 is about 537.2006493218.

The spelling of 155027801 in words is "one hundred fifty-five million, twenty-seven thousand, eight hundred one".