148560221 has 8 divisors (see below), whose sum is σ = 156760800. Its totient is φ = 140397840.

The previous prime is 148560199. The next prime is 148560241. The reversal of 148560221 is 122065841.

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

It is not a de Polignac number, because 148560221 - 2¹⁸ = 148298077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148560241) 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, 1370 + ... + 17291.

It is an arithmetic number, because the mean of its divisors is an integer number (19595100).

Almost surely, 2^148560221 is an apocalyptic number.

It is an amenable number.

148560221 is a deficient number, since it is larger than the sum of its proper divisors (8200579).

148560221 is a wasteful number, since it uses less digits than its factorization.

148560221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19099.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 148560221 is about 12188.5282540592. The cubic root of 148560221 is about 529.6238234891.

The spelling of 148560221 in words is "one hundred forty-eight million, five hundred sixty thousand, two hundred twenty-one".