1683121149 has 12 divisors (see below), whose sum is σ = 2461950400. Its totient is φ = 1107876744.

The previous prime is 1683121133. The next prime is 1683121189. The reversal of 1683121149 is 9411213861.

It is not a de Polignac number, because 1683121149 - 2⁴ = 1683121133 is a prime.

It is a super-2 number, since 2×1683121149² = 5665793604422160402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683121129) 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 11 ways as a sum of consecutive naturals, for example, 1182919 + ... + 1184340.

Almost surely, 2^1683121149 is an apocalyptic number.

It is an amenable number.

1683121149 is a deficient number, since it is larger than the sum of its proper divisors (778829251).

1683121149 is a wasteful number, since it uses less digits than its factorization.

1683121149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367344 (or 2367341 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1683121149 is about 41025.8595156762. The cubic root of 1683121149 is about 1189.5201202822.

The spelling of 1683121149 in words is "one billion, six hundred eighty-three million, one hundred twenty-one thousand, one hundred forty-nine".