155357871 has 4 divisors (see below), whose sum is σ = 207143832. Its totient is φ = 103571912.

The previous prime is 155357861. The next prime is 155357903. The reversal of 155357871 is 178753551.

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 155357871 - 2¹³ = 155349679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155357821) 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, 25892976 + ... + 25892981.

It is an arithmetic number, because the mean of its divisors is an integer number (51785958).

Almost surely, 2^155357871 is an apocalyptic number.

155357871 is a deficient number, since it is larger than the sum of its proper divisors (51785961).

155357871 is an equidigital number, since it uses as much as digits as its factorization.

155357871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51785960.

The product of its digits is 147000, while the sum is 42.

The square root of 155357871 is about 12464.2637568370. The cubic root of 155357871 is about 537.5816307244.

The spelling of 155357871 in words is "one hundred fifty-five million, three hundred fifty-seven thousand, eight hundred seventy-one".