3609749146 has 16 divisors (see below), whose sum is σ = 5459078088. Its totient is φ = 1790107200.

The previous prime is 3609749141. The next prime is 3609749153. The reversal of 3609749146 is 6419479063.

3609749146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2528983521 + 1080765625 = 50289^2 + 32875^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3609749146.

It is not an unprimeable number, because it can be changed into a prime (3609749141) 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, 133276 + ... + 158056.

Almost surely, 2^3609749146 is an apocalyptic number.

3609749146 is a deficient number, since it is larger than the sum of its proper divisors (1849328942).

3609749146 is a wasteful number, since it uses less digits than its factorization.

3609749146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25377.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 3609749146 is about 60081.1879543006. The cubic root of 3609749146 is about 1534.0011108478.

The spelling of 3609749146 in words is "three billion, six hundred nine million, seven hundred forty-nine thousand, one hundred forty-six".