148739618 has 4 divisors (see below), whose sum is σ = 223109430. Its totient is φ = 74369808.

The previous prime is 148739603. The next prime is 148739621. The reversal of 148739618 is 816937841.

148739618 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in only one way, i.e., 92294449 + 56445169 = 9607^2 + 7513^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37184903 + ... + 37184906.

Almost surely, 2^148739618 is an apocalyptic number.

148739618 is a deficient number, since it is larger than the sum of its proper divisors (74369812).

148739618 is an equidigital number, since it uses as much as digits as its factorization.

148739618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74369811.

The product of its digits is 290304, while the sum is 47.

The square root of 148739618 is about 12195.8852897196. The cubic root of 148739618 is about 529.8369238402.

The spelling of 148739618 in words is "one hundred forty-eight million, seven hundred thirty-nine thousand, six hundred eighteen".