220132551 has 4 divisors (see below), whose sum is σ = 293510072. Its totient is φ = 146755032.

The previous prime is 220132513. The next prime is 220132597. The reversal of 220132551 is 155231022.

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

It is not a de Polignac number, because 220132551 - 2⁹ = 220132039 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 (220132151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36688756 + ... + 36688761.

It is an arithmetic number, because the mean of its divisors is an integer number (73377518).

Almost surely, 2^220132551 is an apocalyptic number.

220132551 is a deficient number, since it is larger than the sum of its proper divisors (73377521).

220132551 is an equidigital number, since it uses as much as digits as its factorization.

220132551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73377520.

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

The square root of 220132551 is about 14836.8645946507. The cubic root of 220132551 is about 603.8022895356.

Adding to 220132551 its reverse (155231022), we get a palindrome (375363573).

The spelling of 220132551 in words is "two hundred twenty million, one hundred thirty-two thousand, five hundred fifty-one".