148779685 has 4 divisors (see below), whose sum is σ = 178535628. Its totient is φ = 119023744.

The previous prime is 148779679. The next prime is 148779703. The reversal of 148779685 is 586977841.

148779685 is digitally balanced in base 2, 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 2 ways, for example, as 34845409 + 113934276 = 5903^2 + 10674^2 .

It is a cyclic number.

It is not a de Polignac number, because 148779685 - 2³ = 148779677 is a prime.

It is a Duffinian number.

It is a congruent 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, 14877964 + ... + 14877973.

It is an arithmetic number, because the mean of its divisors is an integer number (44633907).

Almost surely, 2^148779685 is an apocalyptic number.

It is an amenable number.

148779685 is a deficient number, since it is larger than the sum of its proper divisors (29755943).

148779685 is an equidigital number, since it uses as much as digits as its factorization.

148779685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29755942.

The product of its digits is 3386880, while the sum is 55.

The square root of 148779685 is about 12197.5278232927. The cubic root of 148779685 is about 529.8844948245.

The spelling of 148779685 in words is "one hundred forty-eight million, seven hundred seventy-nine thousand, six hundred eighty-five".