155047007 has 2 divisors, whose sum is σ = 155047008. Its totient is φ = 155047006.

The previous prime is 155047001. The next prime is 155047037. The reversal of 155047007 is 700740551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155047007 - 2⁶ = 155046943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155047001) 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, 77523503 + 77523504.

It is an arithmetic number, because the mean of its divisors is an integer number (77523504).

Almost surely, 2^155047007 is an apocalyptic number.

155047007 is a deficient number, since it is larger than the sum of its proper divisors (1).

155047007 is an equidigital number, since it uses as much as digits as its factorization.

155047007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 155047007 is about 12451.7873014279. The cubic root of 155047007 is about 537.2228325465. Note that the first 3 decimals are identical.

Adding to 155047007 its reverse (700740551), we get a palindrome (855787558).

The spelling of 155047007 in words is "one hundred fifty-five million, forty-seven thousand, seven".