203161255 has 8 divisors (see below), whose sum is σ = 265956624. Its totient is φ = 147753600.

The previous prime is 203161253. The next prime is 203161261. The reversal of 203161255 is 552161302.

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

It is not a de Polignac number, because 203161255 - 2¹ = 203161253 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 (203161253) 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, 1846866 + ... + 1846975.

It is an arithmetic number, because the mean of its divisors is an integer number (33244578).

Almost surely, 2^203161255 is an apocalyptic number.

203161255 is a deficient number, since it is larger than the sum of its proper divisors (62795369).

203161255 is a wasteful number, since it uses less digits than its factorization.

203161255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693857.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 203161255 is about 14253.4646665293. The cubic root of 203161255 is about 587.8686432400.

The spelling of 203161255 in words is "two hundred three million, one hundred sixty-one thousand, two hundred fifty-five".