148398158 has 4 divisors (see below), whose sum is σ = 222597240. Its totient is φ = 74199078.

The previous prime is 148398149. The next prime is 148398163. The reversal of 148398158 is 851893841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 851893841 = 353 ⋅2413297.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37099538 + ... + 37099541.

It is an arithmetic number, because the mean of its divisors is an integer number (55649310).

Almost surely, 2^148398158 is an apocalyptic number.

148398158 is a deficient number, since it is larger than the sum of its proper divisors (74199082).

148398158 is an equidigital number, since it uses as much as digits as its factorization.

148398158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74199081.

The product of its digits is 276480, while the sum is 47.

The square root of 148398158 is about 12181.8782624027. The cubic root of 148398158 is about 529.4311661382.

The spelling of 148398158 in words is "one hundred forty-eight million, three hundred ninety-eight thousand, one hundred fifty-eight".