2145027307 has 4 divisors (see below), whose sum is σ = 2203001056. Its totient is φ = 2087053560.

The previous prime is 2145027277. The next prime is 2145027317. The reversal of 2145027307 is 7037205412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2145027307 - 2¹⁹ = 2144503019 is a prime.

It is a super-2 number, since 2×2145027307² = 9202284295551344498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145027317) 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, 28986819 + ... + 28986892.

It is an arithmetic number, because the mean of its divisors is an integer number (550750264).

Almost surely, 2^2145027307 is an apocalyptic number.

2145027307 is a deficient number, since it is larger than the sum of its proper divisors (57973749).

2145027307 is an equidigital number, since it uses as much as digits as its factorization.

2145027307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57973748.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 2145027307 is about 46314.4395086457. The cubic root of 2145027307 is about 1289.6670628886.

The spelling of 2145027307 in words is "two billion, one hundred forty-five million, twenty-seven thousand, three hundred seven".