155200943 has 4 divisors (see below), whose sum is σ = 156737688. Its totient is φ = 153664200.

The previous prime is 155200931. The next prime is 155200957. The reversal of 155200943 is 349002551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155200943 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 (155200543) 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, 768221 + ... + 768422.

It is an arithmetic number, because the mean of its divisors is an integer number (39184422).

Almost surely, 2^155200943 is an apocalyptic number.

155200943 is a deficient number, since it is larger than the sum of its proper divisors (1536745).

155200943 is a wasteful number, since it uses less digits than its factorization.

155200943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536744.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 155200943 is about 12457.9670492420. The cubic root of 155200943 is about 537.4005648402.

The spelling of 155200943 in words is "one hundred fifty-five million, two hundred thousand, nine hundred forty-three".