148274785 has 4 divisors (see below), whose sum is σ = 177929748. Its totient is φ = 118619824.

The previous prime is 148274773. The next prime is 148274807. The reversal of 148274785 is 587472841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587472841 = 613 ⋅958357.

It can be written as a sum of positive squares in 2 ways, for example, as 83101456 + 65173329 = 9116^2 + 8073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148274785 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14827474 + ... + 14827483.

It is an arithmetic number, because the mean of its divisors is an integer number (44482437).

Almost surely, 2^148274785 is an apocalyptic number.

It is an amenable number.

148274785 is a deficient number, since it is larger than the sum of its proper divisors (29654963).

148274785 is an equidigital number, since it uses as much as digits as its factorization.

148274785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29654962.

The product of its digits is 501760, while the sum is 46.

The square root of 148274785 is about 12176.8134173108. The cubic root of 148274785 is about 529.2844086550.

It can be divided in two parts, 1482 and 74785, that added together give a palindrome (76267).

The spelling of 148274785 in words is "one hundred forty-eight million, two hundred seventy-four thousand, seven hundred eighty-five".