3745072109 has 2 divisors, whose sum is σ = 3745072110. Its totient is φ = 3745072108.

The previous prime is 3745072099. The next prime is 3745072193. The reversal of 3745072109 is 9012705473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3711490084 + 33582025 = 60922^2 + 5795^2 .

It is an emirp because it is prime and its reverse (9012705473) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3745072109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3745012109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1872536054 + 1872536055.

It is an arithmetic number, because the mean of its divisors is an integer number (1872536055).

Almost surely, 2^3745072109 is an apocalyptic number.

It is an amenable number.

3745072109 is a deficient number, since it is larger than the sum of its proper divisors (1).

3745072109 is an equidigital number, since it uses as much as digits as its factorization.

3745072109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 3745072109 is about 61196.9942807651. The cubic root of 3745072109 is about 1552.9354167442.

The spelling of 3745072109 in words is "three billion, seven hundred forty-five million, seventy-two thousand, one hundred nine".