2609312148 has 18 divisors (see below), whose sum is σ = 6595761354. Its totient is φ = 869770704.

The previous prime is 2609312137. The next prime is 2609312159. The reversal of 2609312148 is 8412139062.

2609312148 is a `hidden beast` number, since 2 + 609 + 3 + 1 + 2 + 1 + 48 = 666.

2609312148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2609312137) and next prime (2609312159).

It can be written as a sum of positive squares in only one way, i.e., 2197546884 + 411765264 = 46878^2 + 20292^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 72480893 = 2609312148 / (2 + 6 + 0 + 9 + 3 + 1 + 2 + 1 + 4 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36240411 + ... + 36240482.

Almost surely, 2^2609312148 is an apocalyptic number.

It is an amenable number.

2609312148 is an abundant number, since it is smaller than the sum of its proper divisors (3986449206).

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

2609312148 is a wasteful number, since it uses less digits than its factorization.

2609312148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72480903 (or 72480898 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2609312148 is about 51081.4266441336. The cubic root of 2609312148 is about 1376.7085578291.

The spelling of 2609312148 in words is "two billion, six hundred nine million, three hundred twelve thousand, one hundred forty-eight".