1616289149 has 8 divisors (see below), whose sum is σ = 1627466400. Its totient is φ = 1605150000.

The previous prime is 1616289139. The next prime is 1616289179. The reversal of 1616289149 is 9419826161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1616289149 - 2¹² = 1616285053 is a prime.

It is a super-2 number, since 2×1616289149² = 5224781226350288402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616289109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78374 + ... + 96824.

It is an arithmetic number, because the mean of its divisors is an integer number (203433300).

Almost surely, 2^1616289149 is an apocalyptic number.

It is an amenable number.

1616289149 is a deficient number, since it is larger than the sum of its proper divisors (11177251).

1616289149 is a wasteful number, since it uses less digits than its factorization.

1616289149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19051.

The product of its digits is 186624, while the sum is 47.

The square root of 1616289149 is about 40203.0987487283. The cubic root of 1616289149 is about 1173.5628480853.

The spelling of 1616289149 in words is "one billion, six hundred sixteen million, two hundred eighty-nine thousand, one hundred forty-nine".