148210421 has 4 divisors (see below), whose sum is σ = 148825644. Its totient is φ = 147595200.

The previous prime is 148210417. The next prime is 148210423. The reversal of 148210421 is 124012841.

148210421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124012841 = 17 ⋅7294873.

It can be written as a sum of positive squares in 2 ways, for example, as 38254225 + 109956196 = 6185^2 + 10486^2 .

It is a cyclic number.

It is not a de Polignac number, because 148210421 - 2² = 148210417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148210423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307250 + ... + 307731.

It is an arithmetic number, because the mean of its divisors is an integer number (37206411).

Almost surely, 2^148210421 is an apocalyptic number.

It is an amenable number.

148210421 is a deficient number, since it is larger than the sum of its proper divisors (615223).

148210421 is an equidigital number, since it uses as much as digits as its factorization.

148210421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615222.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 148210421 is about 12174.1702386651. The cubic root of 148210421 is about 529.2078125968.

The spelling of 148210421 in words is "one hundred forty-eight million, two hundred ten thousand, four hundred twenty-one".