202155249 has 4 divisors (see below), whose sum is σ = 269540336. Its totient is φ = 134770164.

The previous prime is 202155221. The next prime is 202155251. The reversal of 202155249 is 942551202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 202155249 - 2¹⁷ = 202024177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202155749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33692539 + ... + 33692544.

It is an arithmetic number, because the mean of its divisors is an integer number (67385084).

Almost surely, 2^202155249 is an apocalyptic number.

It is an amenable number.

202155249 is a deficient number, since it is larger than the sum of its proper divisors (67385087).

202155249 is an equidigital number, since it uses as much as digits as its factorization.

202155249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67385086.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 202155249 is about 14218.1309953172. The cubic root of 202155249 is about 586.8967088478.

The spelling of 202155249 in words is "two hundred two million, one hundred fifty-five thousand, two hundred forty-nine".