155455143 has 16 divisors (see below), whose sum is σ = 210355200. Its totient is φ = 102104640.

The previous prime is 155455141. The next prime is 155455159. The reversal of 155455143 is 341554551.

It is not a de Polignac number, because 155455143 - 2¹ = 155455141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155455141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87498 + ... + 89256.

It is an arithmetic number, because the mean of its divisors is an integer number (13147200).

Almost surely, 2^155455143 is an apocalyptic number.

155455143 is a deficient number, since it is larger than the sum of its proper divisors (54900057).

155455143 is a wasteful number, since it uses less digits than its factorization.

155455143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182.

The product of its digits is 30000, while the sum is 33.

The square root of 155455143 is about 12468.1651817739. The cubic root of 155455143 is about 537.6938034139.

The spelling of 155455143 in words is "one hundred fifty-five million, four hundred fifty-five thousand, one hundred forty-three".