155002147 has 2 divisors, whose sum is σ = 155002148. Its totient is φ = 155002146.

The previous prime is 155002117. The next prime is 155002153. The reversal of 155002147 is 741200551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155002147 - 2¹⁵ = 154969379 is a prime.

It is not a weakly prime, because it can be changed into another prime (155002117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77501073 + 77501074.

It is an arithmetic number, because the mean of its divisors is an integer number (77501074).

Almost surely, 2^155002147 is an apocalyptic number.

155002147 is a deficient number, since it is larger than the sum of its proper divisors (1).

155002147 is an equidigital number, since it uses as much as digits as its factorization.

155002147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 155002147 is about 12449.9858232851. The cubic root of 155002147 is about 537.1710156999.

Adding to 155002147 its reverse (741200551), we get a palindrome (896202698).

The spelling of 155002147 in words is "one hundred fifty-five million, two thousand, one hundred forty-seven".