148286421 has 24 divisors (see below), whose sum is σ = 219184056. Its totient is φ = 96570240.

The previous prime is 148286401. The next prime is 148286441. The reversal of 148286421 is 124682841.

148286421 = T₃₉₈ + T₃₉₉ + ... + T₉₈₃.

148286421 is a `hidden beast` number, since 1 + 4 + 8 + 2 + 8 + 642 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (148286401) and next prime (148286441).

It can be written as a sum of positive squares in 4 ways, for example, as 85655025 + 62631396 = 9255^2 + 7914^2 .

It is not a de Polignac number, because 148286421 - 2⁶ = 148286357 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148286401) 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, 139231 + ... + 140291.

It is an arithmetic number, because the mean of its divisors is an integer number (9132669).

Almost surely, 2^148286421 is an apocalyptic number.

It is an amenable number.

148286421 is a deficient number, since it is larger than the sum of its proper divisors (70897635).

148286421 is a wasteful number, since it uses less digits than its factorization.

148286421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413 (or 1410 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 148286421 is about 12177.2912012483. The cubic root of 148286421 is about 529.2982536530.

The spelling of 148286421 in words is "one hundred forty-eight million, two hundred eighty-six thousand, four hundred twenty-one".