220451297 has 8 divisors (see below), whose sum is σ = 250948800. Its totient is φ = 191696560.

The previous prime is 220451267. The next prime is 220451347. The reversal of 220451297 is 792154022.

220451297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 220451297 - 2⁶ = 220451233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220451207) 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, 435422 + ... + 435927.

It is an arithmetic number, because the mean of its divisors is an integer number (31368600).

Almost surely, 2^220451297 is an apocalyptic number.

It is an amenable number.

220451297 is a deficient number, since it is larger than the sum of its proper divisors (30497503).

220451297 is a wasteful number, since it uses less digits than its factorization.

220451297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871383.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 220451297 is about 14847.6023990407. The cubic root of 220451297 is about 604.0935788009.

The spelling of 220451297 in words is "two hundred twenty million, four hundred fifty-one thousand, two hundred ninety-seven".