148779684 has 18 divisors (see below), whose sum is σ = 376082070. Its totient is φ = 49593216.

The previous prime is 148779679. The next prime is 148779703. The reversal of 148779684 is 486977841.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 142277184 + 6502500 = 11928^2 + 2550^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×148779684² = 44270788742279712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 148779684.

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 in 5 ways as a sum of consecutive naturals, for example, 2066349 + ... + 2066420.

Almost surely, 2^148779684 is an apocalyptic number.

It is an amenable number.

148779684 is an abundant number, since it is smaller than the sum of its proper divisors (227302386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148779684 is a wasteful number, since it uses less digits than its factorization.

148779684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132779 (or 4132774 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 148779684 is about 12197.5277823008. The cubic root of 148779684 is about 529.8844936374.

The spelling of 148779684 in words is "one hundred forty-eight million, seven hundred seventy-nine thousand, six hundred eighty-four".