148099979 has 4 divisors (see below), whose sum is σ = 148844400. Its totient is φ = 147355560.

The previous prime is 148099951. The next prime is 148099993. The reversal of 148099979 is 979990841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979990841 = 4423 ⋅221567.

It is a cyclic number.

It is not a de Polignac number, because 148099979 - 2²⁰ = 147051403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148099579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371912 + ... + 372309.

It is an arithmetic number, because the mean of its divisors is an integer number (37211100).

Almost surely, 2^148099979 is an apocalyptic number.

148099979 is a deficient number, since it is larger than the sum of its proper divisors (744421).

148099979 is an equidigital number, since it uses as much as digits as its factorization.

148099979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744420.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 148099979 is about 12169.6334784578. The cubic root of 148099979 is about 529.0763299556.

The spelling of 148099979 in words is "one hundred forty-eight million, ninety-nine thousand, nine hundred seventy-nine".