155214143 has 16 divisors (see below), whose sum is σ = 187875840. Its totient is φ = 125348256.

The previous prime is 155214107. The next prime is 155214167. The reversal of 155214143 is 341412551.

It is a cyclic number.

It is not a de Polignac number, because 155214143 - 2⁶ = 155214079 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 (155214443) 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, 3593 + ... + 17981.

It is an arithmetic number, because the mean of its divisors is an integer number (11742240).

Almost surely, 2^155214143 is an apocalyptic number.

155214143 is a deficient number, since it is larger than the sum of its proper divisors (32661697).

155214143 is a wasteful number, since it uses less digits than its factorization.

155214143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14486.

The product of its digits is 2400, while the sum is 26.

The square root of 155214143 is about 12458.4968194401. The cubic root of 155214143 is about 537.4157998988.

Adding to 155214143 its reverse (341412551), we get a palindrome (496626694).

The spelling of 155214143 in words is "one hundred fifty-five million, two hundred fourteen thousand, one hundred forty-three".