155862671 has 2 divisors, whose sum is σ = 155862672. Its totient is φ = 155862670.

The previous prime is 155862661. The next prime is 155862673. The reversal of 155862671 is 176268551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155862671 is a prime.

It is a super-2 number, since 2×155862671² = 48586344422508482, which contains 22 as substring.

Together with 155862673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155862673) 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, 77931335 + 77931336.

It is an arithmetic number, because the mean of its divisors is an integer number (77931336).

Almost surely, 2^155862671 is an apocalyptic number.

155862671 is a deficient number, since it is larger than the sum of its proper divisors (1).

155862671 is an equidigital number, since it uses as much as digits as its factorization.

155862671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 41.

The square root of 155862671 is about 12484.4972265606. The cubic root of 155862671 is about 538.1632509008.

The spelling of 155862671 in words is "one hundred fifty-five million, eight hundred sixty-two thousand, six hundred seventy-one".