155232543 has 8 divisors (see below), whose sum is σ = 215975808. Its totient is φ = 98988824.

The previous prime is 155232523. The next prime is 155232547. The reversal of 155232543 is 345232551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155232543 - 2¹³ = 155224351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155232543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155232547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1124805 + ... + 1124942.

It is an arithmetic number, because the mean of its divisors is an integer number (26996976).

Almost surely, 2^155232543 is an apocalyptic number.

155232543 is a deficient number, since it is larger than the sum of its proper divisors (60743265).

155232543 is a wasteful number, since it uses less digits than its factorization.

155232543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249773.

The product of its digits is 18000, while the sum is 30.

The square root of 155232543 is about 12459.2352494044. The cubic root of 155232543 is about 537.4370352059.

The spelling of 155232543 in words is "one hundred fifty-five million, two hundred thirty-two thousand, five hundred forty-three".