220251545 has 8 divisors (see below), whose sum is σ = 264441024. Its totient is φ = 176108464.

The previous prime is 220251533. The next prime is 220251557. The reversal of 220251545 is 545152022.

It is an interprime number because it is at equal distance from previous prime (220251533) and next prime (220251557).

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

It is a cyclic number.

It is not a de Polignac number, because 220251545 - 2⁴ = 220251529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119 + ... + 20988.

It is an arithmetic number, because the mean of its divisors is an integer number (33055128).

Almost surely, 2^220251545 is an apocalyptic number.

It is an amenable number.

220251545 is a deficient number, since it is larger than the sum of its proper divisors (44189479).

220251545 is a wasteful number, since it uses less digits than its factorization.

220251545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23199.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 220251545 is about 14840.8741319371. The cubic root of 220251545 is about 603.9110662811.

The spelling of 220251545 in words is "two hundred twenty million, two hundred fifty-one thousand, five hundred forty-five".