155041203 has 16 divisors (see below), whose sum is σ = 214709760. Its totient is φ = 99441696.

The previous prime is 155041193. The next prime is 155041217. The reversal of 155041203 is 302140551.

It is not a de Polignac number, because 155041203 - 2⁵ = 155041171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155041203.

It is not an unprimeable number, because it can be changed into a prime (155041223) 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, 1000 + ... + 17637.

It is an arithmetic number, because the mean of its divisors is an integer number (13419360).

Almost surely, 2^155041203 is an apocalyptic number.

155041203 is a deficient number, since it is larger than the sum of its proper divisors (59668557).

155041203 is a wasteful number, since it uses less digits than its factorization.

155041203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18746.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 155041203 is about 12451.5542403348. The cubic root of 155041203 is about 537.2161290306.

Adding to 155041203 its reverse (302140551), we get a palindrome (457181754).

The spelling of 155041203 in words is "one hundred fifty-five million, forty-one thousand, two hundred three".