155106047 has 2 divisors, whose sum is σ = 155106048. Its totient is φ = 155106046.

The previous prime is 155106041. The next prime is 155106053. The reversal of 155106047 is 740601551.

It is a balanced prime because it is at equal distance from previous prime (155106041) and next prime (155106053).

It is a cyclic number.

It is not a de Polignac number, because 155106047 - 2¹² = 155101951 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 (155106041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77553023 + 77553024.

It is an arithmetic number, because the mean of its divisors is an integer number (77553024).

Almost surely, 2^155106047 is an apocalyptic number.

155106047 is a deficient number, since it is larger than the sum of its proper divisors (1).

155106047 is an equidigital number, since it uses as much as digits as its factorization.

155106047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 155106047 is about 12454.1578197805. The cubic root of 155106047 is about 537.2910131832.

Adding to 155106047 its reverse (740601551), we get a palindrome (895707598).

The spelling of 155106047 in words is "one hundred fifty-five million, one hundred six thousand, forty-seven".