3653499149 has 4 divisors (see below), whose sum is σ = 3680167164. Its totient is φ = 3626831136.

The previous prime is 3653499133. The next prime is 3653499181. The reversal of 3653499149 is 9419943563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9419943563 = 991 ⋅9505493.

It can be written as a sum of positive squares in 2 ways, for example, as 2384857225 + 1268641924 = 48835^2 + 35618^2 .

It is a cyclic number.

It is not a de Polignac number, because 3653499149 - 2⁴ = 3653499133 is a prime.

It is a super-3 number, since 3×3653499149³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3653499149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3653499119) 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, 13333802 + ... + 13334075.

It is an arithmetic number, because the mean of its divisors is an integer number (920041791).

Almost surely, 2^3653499149 is an apocalyptic number.

It is an amenable number.

3653499149 is a deficient number, since it is larger than the sum of its proper divisors (26668015).

3653499149 is a wasteful number, since it uses less digits than its factorization.

3653499149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26668014.

The product of its digits is 3149280, while the sum is 53.

The square root of 3653499149 is about 60444.1820938955. The cubic root of 3653499149 is about 1540.1735832053.

The spelling of 3653499149 in words is "three billion, six hundred fifty-three million, four hundred ninety-nine thousand, one hundred forty-nine".