148567221 has 24 divisors (see below), whose sum is σ = 241662720. Its totient is φ = 87134400.

The previous prime is 148567219. The next prime is 148567273. The reversal of 148567221 is 122765841.

It is not a de Polignac number, because 148567221 - 2¹ = 148567219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148567201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21136 + ... + 27273.

It is an arithmetic number, because the mean of its divisors is an integer number (10069280).

Almost surely, 2^148567221 is an apocalyptic number.

148567221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

148567221 is a deficient number, since it is larger than the sum of its proper divisors (93095499).

148567221 is a wasteful number, since it uses less digits than its factorization.

148567221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48457 (or 48454 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 148567221 is about 12188.8154059367. The cubic root of 148567221 is about 529.6321417960.

The spelling of 148567221 in words is "one hundred forty-eight million, five hundred sixty-seven thousand, two hundred twenty-one".