2145932305 has 8 divisors (see below), whose sum is σ = 2809220544. Its totient is φ = 1560678000.

The previous prime is 2145932303. The next prime is 2145932339. The reversal of 2145932305 is 5032395412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2145932305 - 2¹ = 2145932303 is a prime.

It is a super-2 number, since 2×2145932305² = 9210050915285226050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145932303) 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, 19508421 + ... + 19508530.

It is an arithmetic number, because the mean of its divisors is an integer number (351152568).

Almost surely, 2^2145932305 is an apocalyptic number.

It is an amenable number.

2145932305 is a deficient number, since it is larger than the sum of its proper divisors (663288239).

2145932305 is a wasteful number, since it uses less digits than its factorization.

2145932305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39016967.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 2145932305 is about 46324.2086278870. The cubic root of 2145932305 is about 1289.8484097655.

The spelling of 2145932305 in words is "two billion, one hundred forty-five million, nine hundred thirty-two thousand, three hundred five".