1612826149 has 4 divisors (see below), whose sum is σ = 1759446720. Its totient is φ = 1466205580.

The previous prime is 1612826027. The next prime is 1612826167. The reversal of 1612826149 is 9416282161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1612826149 - 2⁹ = 1612825637 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612826179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73310269 + ... + 73310290.

It is an arithmetic number, because the mean of its divisors is an integer number (439861680).

Almost surely, 2^1612826149 is an apocalyptic number.

It is an amenable number.

1612826149 is a deficient number, since it is larger than the sum of its proper divisors (146620571).

1612826149 is a wasteful number, since it uses less digits than its factorization.

1612826149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146620570.

The product of its digits is 41472, while the sum is 40.

The square root of 1612826149 is about 40160.0068351588. The cubic root of 1612826149 is about 1172.7241049893.

The spelling of 1612826149 in words is "one billion, six hundred twelve million, eight hundred twenty-six thousand, one hundred forty-nine".