155064143 has 4 divisors (see below), whose sum is σ = 166992168. Its totient is φ = 143136120.

The previous prime is 155064127. The next prime is 155064179. The reversal of 155064143 is 341460551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341460551 = 17033 ⋅20047.

It is a cyclic number.

It is not a de Polignac number, because 155064143 - 2⁴ = 155064127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155066143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5963993 + ... + 5964018.

It is an arithmetic number, because the mean of its divisors is an integer number (41748042).

Almost surely, 2^155064143 is an apocalyptic number.

155064143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

155064143 is a deficient number, since it is larger than the sum of its proper divisors (11928025).

155064143 is a wasteful number, since it uses less digits than its factorization.

155064143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11928024.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 155064143 is about 12452.4753764061. The cubic root of 155064143 is about 537.2426233431.

The spelling of 155064143 in words is "one hundred fifty-five million, sixty-four thousand, one hundred forty-three".