2009237745 has 64 divisors (see below), whose sum is σ = 3457209600. Its totient is φ = 993484800.

The previous prime is 2009237723. The next prime is 2009237767. The reversal of 2009237745 is 5477329002.

It is an interprime number because it is at equal distance from previous prime (2009237723) and next prime (2009237767).

It is not a de Polignac number, because 2009237745 - 2⁷ = 2009237617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2865895 + ... + 2866595.

It is an arithmetic number, because the mean of its divisors is an integer number (54018900).

Almost surely, 2^2009237745 is an apocalyptic number.

It is an amenable number.

2009237745 is a deficient number, since it is larger than the sum of its proper divisors (1447971855).

2009237745 is a wasteful number, since it uses less digits than its factorization.

2009237745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 2009237745 is about 44824.5216929305. The cubic root of 2009237745 is about 1261.8578758610.

The spelling of 2009237745 in words is "two billion, nine million, two hundred thirty-seven thousand, seven hundred forty-five".