148406281 has 4 divisors (see below), whose sum is σ = 154858752. Its totient is φ = 141953812.

The previous prime is 148406267. The next prime is 148406303. The reversal of 148406281 is 182604841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 148406281 - 2¹¹ = 148404233 is a prime.

It is a super-2 number, since 2×148406281² = 44048848480501922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148406261) 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, 3226201 + ... + 3226246.

It is an arithmetic number, because the mean of its divisors is an integer number (38714688).

Almost surely, 2^148406281 is an apocalyptic number.

It is an amenable number.

148406281 is a deficient number, since it is larger than the sum of its proper divisors (6452471).

148406281 is an equidigital number, since it uses as much as digits as its factorization.

148406281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452470.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 148406281 is about 12182.2116629124. The cubic root of 148406281 is about 529.4408259411.

The spelling of 148406281 in words is "one hundred forty-eight million, four hundred six thousand, two hundred eighty-one".