2145017308 has 24 divisors (see below), whose sum is σ = 4291408352. Its totient is φ = 918998784.

The previous prime is 2145017297. The next prime is 2145017309. The reversal of 2145017308 is 8037105412.

It is a self number, because there is not a number n which added to its sum of digits gives 2145017308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145017309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92416 + ... + 113272.

Almost surely, 2^2145017308 is an apocalyptic number.

2145017308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2145017308 is an abundant number, since it is smaller than the sum of its proper divisors (2146391044).

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

2145017308 is a wasteful number, since it uses less digits than its factorization.

2145017308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24541 (or 24539 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 2145017308 is about 46314.3315616236. The cubic root of 2145017308 is about 1289.6650589668.

The spelling of 2145017308 in words is "two billion, one hundred forty-five million, seventeen thousand, three hundred eight".