3099149245 has 4 divisors (see below), whose sum is σ = 3718979100. Its totient is φ = 2479319392.

The previous prime is 3099149233. The next prime is 3099149279. The reversal of 3099149245 is 5429419903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5429419903 = 1187 ⋅4574069.

It can be written as a sum of positive squares in 2 ways, for example, as 1235241316 + 1863907929 = 35146^2 + 43173^2 .

It is a cyclic number.

It is not a de Polignac number, because 3099149245 - 2⁵ = 3099149213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3099149195 and 3099149204.

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, 309914920 + ... + 309914929.

It is an arithmetic number, because the mean of its divisors is an integer number (929744775).

Almost surely, 2^3099149245 is an apocalyptic number.

It is an amenable number.

3099149245 is a deficient number, since it is larger than the sum of its proper divisors (619829855).

3099149245 is an equidigital number, since it uses as much as digits as its factorization.

3099149245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619829854.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 3099149245 is about 55670.0030986168. The cubic root of 3099149245 is about 1457.9663380701.

The spelling of 3099149245 in words is "three billion, ninety-nine million, one hundred forty-nine thousand, two hundred forty-five".