148219521 has 16 divisors (see below), whose sum is σ = 211795584. Its totient is φ = 91960704.

The previous prime is 148219459. The next prime is 148219523. The reversal of 148219521 is 125912841.

It is not a de Polignac number, because 148219521 - 2⁹ = 148219009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148219523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26476 + ... + 31581.

It is an arithmetic number, because the mean of its divisors is an integer number (13237224).

Almost surely, 2^148219521 is an apocalyptic number.

It is an amenable number.

148219521 is a deficient number, since it is larger than the sum of its proper divisors (63576063).

148219521 is a wasteful number, since it uses less digits than its factorization.

148219521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58120.

The product of its digits is 5760, while the sum is 33.

The square root of 148219521 is about 12174.5439750325. The cubic root of 148219521 is about 529.2186433524.

It can be divided in two parts, 14821 and 9521, that added together give a palindrome (24342).

The spelling of 148219521 in words is "one hundred forty-eight million, two hundred nineteen thousand, five hundred twenty-one".