202155451 has 4 divisors (see below), whose sum is σ = 202197600. Its totient is φ = 202113304.

The previous prime is 202155407. The next prime is 202155467. The reversal of 202155451 is 154551202.

202155451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 202155451 - 2¹³ = 202147259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202155251) 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, 12796 + ... + 23833.

It is an arithmetic number, because the mean of its divisors is an integer number (50549400).

Almost surely, 2^202155451 is an apocalyptic number.

202155451 is a deficient number, since it is larger than the sum of its proper divisors (42149).

202155451 is an equidigital number, since it uses as much as digits as its factorization.

202155451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42148.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 202155451 is about 14218.1380989214. The cubic root of 202155451 is about 586.8969043297.

The spelling of 202155451 in words is "two hundred two million, one hundred fifty-five thousand, four hundred fifty-one".