148458493 has 4 divisors (see below), whose sum is σ = 148811548. Its totient is φ = 148105440.

The previous prime is 148458487. The next prime is 148458521. The reversal of 148458493 is 394854841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58644964 + 89813529 = 7658^2 + 9477^2 .

It is a cyclic number.

It is not a de Polignac number, because 148458493 - 2⁵ = 148458461 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 (148458463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175896 + ... + 176737.

It is an arithmetic number, because the mean of its divisors is an integer number (37202887).

Almost surely, 2^148458493 is an apocalyptic number.

It is an amenable number.

148458493 is a deficient number, since it is larger than the sum of its proper divisors (353055).

148458493 is an equidigital number, since it uses as much as digits as its factorization.

148458493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353054.

The product of its digits is 552960, while the sum is 46.

The square root of 148458493 is about 12184.3544350942. The cubic root of 148458493 is about 529.5029075976.

The spelling of 148458493 in words is "one hundred forty-eight million, four hundred fifty-eight thousand, four hundred ninety-three".