155316871 has 4 divisors (see below), whose sum is σ = 158247432. Its totient is φ = 152386312.

The previous prime is 155316869. The next prime is 155316877. The reversal of 155316871 is 178613551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155316871 - 2¹ = 155316869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155316871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155316877) 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 in 3 ways as a sum of consecutive naturals, for example, 1465201 + ... + 1465306.

It is an arithmetic number, because the mean of its divisors is an integer number (39561858).

Almost surely, 2^155316871 is an apocalyptic number.

155316871 is a deficient number, since it is larger than the sum of its proper divisors (2930561).

155316871 is an equidigital number, since it uses as much as digits as its factorization.

155316871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930560.

The product of its digits is 25200, while the sum is 37.

The square root of 155316871 is about 12462.6189462729. The cubic root of 155316871 is about 537.5343360795.

The spelling of 155316871 in words is "one hundred fifty-five million, three hundred sixteen thousand, eight hundred seventy-one".