155316671 has 2 divisors, whose sum is σ = 155316672. Its totient is φ = 155316670.

The previous prime is 155316647. The next prime is 155316701. The reversal of 155316671 is 176613551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155316671 - 2¹⁰ = 155315647 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 (155316611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77658335 + 77658336.

It is an arithmetic number, because the mean of its divisors is an integer number (77658336).

Almost surely, 2^155316671 is an apocalyptic number.

155316671 is a deficient number, since it is larger than the sum of its proper divisors (1).

155316671 is an equidigital number, since it uses as much as digits as its factorization.

155316671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 35.

The square root of 155316671 is about 12462.6109222747. The cubic root of 155316671 is about 537.5341053535.

The spelling of 155316671 in words is "one hundred fifty-five million, three hundred sixteen thousand, six hundred seventy-one".