155163487 has 2 divisors, whose sum is σ = 155163488. Its totient is φ = 155163486.

The previous prime is 155163461. The next prime is 155163499. The reversal of 155163487 is 784361551.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155163487 - 2¹¹ = 155161439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155163457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77581743 + 77581744.

It is an arithmetic number, because the mean of its divisors is an integer number (77581744).

Almost surely, 2^155163487 is an apocalyptic number.

155163487 is a deficient number, since it is larger than the sum of its proper divisors (1).

155163487 is an equidigital number, since it uses as much as digits as its factorization.

155163487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 40.

The square root of 155163487 is about 12456.4636634962. The cubic root of 155163487 is about 537.3573295036.

The spelling of 155163487 in words is "one hundred fifty-five million, one hundred sixty-three thousand, four hundred eighty-seven".