155356087 has 2 divisors, whose sum is σ = 155356088. Its totient is φ = 155356086.

The previous prime is 155356057. The next prime is 155356109. The reversal of 155356087 is 780653551.

155356087 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155356087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155356057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77678043 + 77678044.

It is an arithmetic number, because the mean of its divisors is an integer number (77678044).

Almost surely, 2^155356087 is an apocalyptic number.

155356087 is a deficient number, since it is larger than the sum of its proper divisors (1).

155356087 is an equidigital number, since it uses as much as digits as its factorization.

155356087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 155356087 is about 12464.1921920356. The cubic root of 155356087 is about 537.5795730038.

The spelling of 155356087 in words is "one hundred fifty-five million, three hundred fifty-six thousand, eighty-seven".